diff --git a/src/com/android/browser/Bookmarks.java b/src/com/android/browser/Bookmarks.java
index 5ada9dc..da39799 100644
--- a/src/com/android/browser/Bookmarks.java
+++ b/src/com/android/browser/Bookmarks.java
@@ -16,6 +16,8 @@
 
 package com.android.browser;
 
+import com.android.browser.provider.BrowserContract;
+
 import android.content.ContentResolver;
 import android.content.ContentUris;
 import android.content.ContentValues;
@@ -23,7 +25,9 @@
 import android.database.Cursor;
 import android.graphics.Bitmap;
 import android.net.Uri;
+import android.os.AsyncTask;
 import android.provider.Browser;
+import android.provider.Browser.BookmarkColumns;
 import android.util.Log;
 import android.webkit.WebIconDatabase;
 import android.widget.Toast;
@@ -61,72 +65,18 @@
      *          This will usually be <code>true</code> except when bookmarks are
      *          added by a settings restore agent.
      */
-    /* package */ static void addBookmark(Context context,
-            ContentResolver cr, String url, String name,
-            Bitmap thumbnail, boolean retainIcon) {
+    /* package */ static void addBookmark(Context context, ContentResolver cr, String url,
+            String name, Bitmap thumbnail, boolean retainIcon) {
         // Want to append to the beginning of the list
-        long creationTime = new Date().getTime();
-        ContentValues map = new ContentValues();
+        ContentValues values = new ContentValues();
         Cursor cursor = null;
         try {
-            cursor = Browser.getVisitedLike(cr, url);
-            if (cursor.moveToFirst() && cursor.getInt(
-                    Browser.HISTORY_PROJECTION_BOOKMARK_INDEX) == 0) {
-                // This means we have been to this site but not bookmarked
-                // it, so convert the history item to a bookmark
-                map.put(Browser.BookmarkColumns.CREATED, creationTime);
-                map.put(Browser.BookmarkColumns.TITLE, name);
-                map.put(Browser.BookmarkColumns.BOOKMARK, 1);
-                map.put(Browser.BookmarkColumns.THUMBNAIL,
-                        bitmapToBytes(thumbnail));
-                cr.update(Browser.BOOKMARKS_URI, map,
-                        "_id = " + cursor.getInt(0), null);
-            } else {
-                int count = cursor.getCount();
-                boolean matchedTitle = false;
-                for (int i = 0; i < count; i++) {
-                    // One or more bookmarks already exist for this site.
-                    // Check the names of each
-                    cursor.moveToPosition(i);
-                    if (cursor.getString(Browser.HISTORY_PROJECTION_TITLE_INDEX)
-                            .equals(name)) {
-                        // The old bookmark has the same name.
-                        // Update its creation time.
-                        map.put(Browser.BookmarkColumns.CREATED,
-                                creationTime);
-                        cr.update(Browser.BOOKMARKS_URI, map,
-                                "_id = " + cursor.getInt(0), null);
-                        matchedTitle = true;
-                        break;
-                    }
-                }
-                if (!matchedTitle) {
-                    // Adding a bookmark for a site the user has visited,
-                    // or a new bookmark (with a different name) for a site
-                    // the user has visited
-                    map.put(Browser.BookmarkColumns.TITLE, name);
-                    map.put(Browser.BookmarkColumns.URL, url);
-                    map.put(Browser.BookmarkColumns.CREATED, creationTime);
-                    map.put(Browser.BookmarkColumns.BOOKMARK, 1);
-                    map.put(Browser.BookmarkColumns.DATE, 0);
-                    map.put(Browser.BookmarkColumns.THUMBNAIL,
-                            bitmapToBytes(thumbnail));
-                    int visits = 0;
-                    if (count > 0) {
-                        // The user has already bookmarked, and possibly
-                        // visited this site.  However, they are creating
-                        // a new bookmark with the same url but a different
-                        // name.  The new bookmark should have the same
-                        // number of visits as the already created bookmark.
-                        visits = cursor.getInt(
-                                Browser.HISTORY_PROJECTION_VISITS_INDEX);
-                    }
-                    // Bookmark starts with 3 extra visits so that it will
-                    // bubble up in the most visited and goto search box
-                    map.put(Browser.BookmarkColumns.VISITS, visits + 3);
-                    cr.insert(Browser.BOOKMARKS_URI, map);
-                }
-            }
+            values.put(BrowserContract.Bookmarks.TITLE, name);
+            values.put(BrowserContract.Bookmarks.URL, url);
+            values.put(BrowserContract.Bookmarks.IS_FOLDER, 0);
+            values.put(BrowserContract.Bookmarks.THUMBNAIL,
+                    bitmapToBytes(thumbnail));
+            cr.insert(BrowserContract.Bookmarks.CONTENT_URI, values);
         } catch (IllegalStateException e) {
             Log.e(LOGTAG, "addBookmark", e);
         } finally {
@@ -219,4 +169,92 @@
         }
         return false;
     }
+
+    /* package */ static Cursor queryBookmarksForUrl(ContentResolver cr,
+            String originalUrl, String url, boolean onlyBookmarks) {
+        if (cr == null || url == null) {
+            return null;
+        }
+    
+        // If originalUrl is null, just set it to url.
+        if (originalUrl == null) {
+            originalUrl = url;
+        }
+    
+        // Look for both the original url and the actual url. This takes in to
+        // account redirects.
+        String originalUrlNoQuery = Bookmarks.removeQuery(originalUrl);
+        String urlNoQuery = Bookmarks.removeQuery(url);
+        originalUrl = originalUrlNoQuery + '?';
+        url = urlNoQuery + '?';
+    
+        // Use NoQuery to search for the base url (i.e. if the url is
+        // http://www.yahoo.com/?rs=1, search for http://www.yahoo.com)
+        // Use url to match the base url with other queries (i.e. if the url is
+        // http://www.google.com/m, search for
+        // http://www.google.com/m?some_query)
+        final String[] selArgs = new String[] {
+            originalUrlNoQuery, urlNoQuery, originalUrl, url };
+        String where = BookmarkColumns.URL + " == ? OR "
+                + BookmarkColumns.URL + " == ? OR "
+                + BookmarkColumns.URL + " LIKE ? || '%' OR "
+                + BookmarkColumns.URL + " LIKE ? || '%'";
+        if (onlyBookmarks) {
+            where = "(" + where + ") AND " + BookmarkColumns.BOOKMARK + " == 1";
+        }
+        final String[] projection =
+                new String[] { Browser.BookmarkColumns._ID };
+        return cr.query(Browser.BOOKMARKS_URI, projection, where, selArgs,
+                null);
+    }
+
+    // Strip the query from the given url.
+    static String removeQuery(String url) {
+        if (url == null) {
+            return null;
+        }
+        int query = url.indexOf('?');
+        String noQuery = url;
+        if (query != -1) {
+            noQuery = url.substring(0, query);
+        }
+        return noQuery;
+    }
+
+    /**
+     * Update the bookmark's favicon. This is a convenience method for updating
+     * a bookmark favicon for the originalUrl and url of the passed in WebView.
+     * @param cr The ContentResolver to use.
+     * @param originalUrl The original url before any redirects.
+     * @param url The current url.
+     * @param favicon The favicon bitmap to write to the db.
+     */
+    /* package */ static void updateBookmarkFavicon(final ContentResolver cr,
+            final String originalUrl, final String url, final Bitmap favicon) {
+        new AsyncTask<Void, Void, Void>() {
+            @Override
+            protected Void doInBackground(Void... unused) {
+                final Cursor c =
+                        Bookmarks.queryBookmarksForUrl(cr, originalUrl, url, true);
+                if (c == null) {
+                    return null;
+                }
+                if (c.moveToFirst()) {
+                    ContentValues values = new ContentValues();
+                    final ByteArrayOutputStream os =
+                            new ByteArrayOutputStream();
+                    favicon.compress(Bitmap.CompressFormat.PNG, 100, os);
+                    values.put(Browser.BookmarkColumns.FAVICON,
+                            os.toByteArray());
+                    do {
+                        cr.update(ContentUris.withAppendedId(
+                                Browser.BOOKMARKS_URI, c.getInt(0)),
+                                values, null, null);
+                    } while (c.moveToNext());
+                }
+                c.close();
+                return null;
+            }
+        }.execute();
+    }
 }
diff --git a/src/com/android/browser/BookmarksLoader.java b/src/com/android/browser/BookmarksLoader.java
new file mode 100644
index 0000000..cdb0317
--- /dev/null
+++ b/src/com/android/browser/BookmarksLoader.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.browser;
+
+import com.android.browser.provider.BrowserContract.Bookmarks;
+
+import android.content.Context;
+import android.content.CursorLoader;
+
+public class BookmarksLoader extends CursorLoader {
+    public static final String ARG_ROOT_FOLDER = "root";
+
+    public static final int COLUMN_INDEX_ID = 0;
+    public static final int COLUMN_INDEX_URL = 1;
+    public static final int COLUMN_INDEX_TITLE = 2;
+    public static final int COLUMN_INDEX_FAVICON = 3;
+    public static final int COLUMN_INDEX_THUMBNAIL = 4;
+    public static final int COLUMN_INDEX_TOUCH_ICON = 5;
+    public static final int COLUMN_INDEX_IS_FOLDER = 6;
+
+    public static final String[] PROJECTION = new String[] {
+        Bookmarks._ID, // 0
+        Bookmarks.URL, // 1
+        Bookmarks.TITLE, // 2
+        Bookmarks.FAVICON, // 3
+        Bookmarks.THUMBNAIL, // 4
+        Bookmarks.TOUCH_ICON, // 5
+        Bookmarks.IS_FOLDER, // 6
+        Bookmarks.POSITION, // 7
+    };
+
+    public BookmarksLoader(Context context, int rootFolder) {
+        super(context, Bookmarks.CONTENT_URI_DEFAULT_FOLDER, PROJECTION, null, null, null);
+    }
+}
diff --git a/src/com/android/browser/BrowserActivity.java b/src/com/android/browser/BrowserActivity.java
index ee231a7..a2c2f32 100644
--- a/src/com/android/browser/BrowserActivity.java
+++ b/src/com/android/browser/BrowserActivity.java
@@ -2474,7 +2474,7 @@
             protected Void doInBackground(Void... unused) {
                 Cursor c = null;
                 try {
-                    c = BrowserBookmarksAdapter.queryBookmarksForUrl(
+                    c = Bookmarks.queryBookmarksForUrl(
                             cr, originalUrl, url, true);
                     if (c != null) {
                         if (c.moveToFirst()) {
diff --git a/src/com/android/browser/BrowserBookmarksAdapter.java b/src/com/android/browser/BrowserBookmarksAdapter.java
index 241b33b..e29ca18 100644
--- a/src/com/android/browser/BrowserBookmarksAdapter.java
+++ b/src/com/android/browser/BrowserBookmarksAdapter.java
@@ -16,567 +16,44 @@
 
 package com.android.browser;
 
-import android.content.ContentResolver;
-import android.content.ContentUris;
-import android.content.ContentValues;
-import android.database.ContentObserver;
+import android.content.Context;
 import android.database.Cursor;
-import android.database.DataSetObserver;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
-import android.net.Uri;
-import android.os.AsyncTask;
-import android.os.Bundle;
-import android.os.Handler;
-import android.os.Looper;
-import android.provider.Browser;
-import android.provider.Browser.BookmarkColumns;
-import android.view.KeyEvent;
-import android.view.LayoutInflater;
 import android.view.View;
-import android.view.ViewGroup;
-import android.webkit.WebIconDatabase;
-import android.webkit.WebView;
-import android.widget.BaseAdapter;
 import android.widget.ImageView;
+import android.widget.ResourceCursorAdapter;
 import android.widget.TextView;
 
-import java.io.ByteArrayOutputStream;
-
-class BrowserBookmarksAdapter extends BaseAdapter {
-
-    private String                  mCurrentPage;
-    private String                  mCurrentTitle;
-    private Bitmap                  mCurrentThumbnail;
-    private Cursor                  mCursor;
-    private int                     mCount;
-    private BrowserBookmarksPage    mBookmarksPage;
-    private ContentResolver         mContentResolver;
-    private boolean                 mDataValid;
-    private BookmarkViewMode        mViewMode;
-    private boolean                 mMostVisited;
-    private boolean                 mNeedsOffset;
-    private int                     mExtraOffset;
-
+class BrowserBookmarksAdapter extends ResourceCursorAdapter {
     /**
      *  Create a new BrowserBookmarksAdapter.
-     *  @param b        BrowserBookmarksPage that instantiated this.
-     *                  Necessary so it will adjust its focus
-     *                  appropriately after a search.
      */
-    public BrowserBookmarksAdapter(BrowserBookmarksPage b, String curPage,
-            String curTitle, Bitmap curThumbnail, boolean createShortcut,
-            boolean mostVisited) {
-        mNeedsOffset = !(createShortcut || mostVisited);
-        mMostVisited = mostVisited;
-        mExtraOffset = mNeedsOffset ? 1 : 0;
-        mBookmarksPage = b;
-        mCurrentPage = b.getResources().getString(R.string.current_page)
-                + curPage;
-        mCurrentTitle = curTitle;
-        mCurrentThumbnail = curThumbnail;
-        mContentResolver = b.getContentResolver();
-        mViewMode = BookmarkViewMode.LIST;
-
-        String whereClause;
-        // FIXME: Should have a default sort order that the user selects.
-        String orderBy = Browser.BookmarkColumns.VISITS + " DESC";
-        if (mostVisited) {
-            whereClause = Browser.BookmarkColumns.VISITS + " != 0";
-        } else {
-            whereClause = Browser.BookmarkColumns.BOOKMARK + " = 1";
-        }
-        mCursor = b.managedQuery(Browser.BOOKMARKS_URI,
-                Browser.HISTORY_PROJECTION, whereClause, null, orderBy);
-        mCursor.registerContentObserver(new ChangeObserver());
-        mCursor.registerDataSetObserver(new MyDataSetObserver());
-
-        mDataValid = true;
-        notifyDataSetChanged();
-
-        mCount = mCursor.getCount() + mExtraOffset;
+    public BrowserBookmarksAdapter(Context context) {
+        // Make sure to tell the CursorAdapter to avoid the observer and auto-requery
+        // since the Loader will do that for us.
+        super(context, R.layout.bookmark_thumbnail, null);
     }
-    
-    /**
-     *  Return a hashmap with one row's Title, Url, and favicon.
-     *  @param position  Position in the list.
-     *  @return Bundle  Stores title, url of row position, favicon, and id
-     *                   for the url.  Return a blank map if position is out of
-     *                   range.
-     */
-    public Bundle getRow(int position) {
-        Bundle map = new Bundle();
-        if (position < mExtraOffset || position >= mCount) {
-            return map;
-        }
-        mCursor.moveToPosition(position- mExtraOffset);
-        String url = mCursor.getString(Browser.HISTORY_PROJECTION_URL_INDEX);
-        map.putString(Browser.BookmarkColumns.TITLE, 
-                mCursor.getString(Browser.HISTORY_PROJECTION_TITLE_INDEX));
-        map.putString(Browser.BookmarkColumns.URL, url);
-        byte[] data = mCursor.getBlob(Browser.HISTORY_PROJECTION_FAVICON_INDEX);
+
+    @Override
+    public void bindView(View view, Context context, Cursor cursor) {
+        View holder = view.findViewById(R.id.holder);
+        ImageView thumb = (ImageView) view.findViewById(R.id.thumb);
+        TextView tv = (TextView) view.findViewById(R.id.label);
+
+        holder.setVisibility(View.GONE);
+        tv.setText(cursor.getString(BookmarksLoader.COLUMN_INDEX_TITLE));
+
+        Bitmap thumbnail = null;
+        byte[] data = cursor.getBlob(BookmarksLoader.COLUMN_INDEX_THUMBNAIL);
         if (data != null) {
-            map.putParcelable(Browser.BookmarkColumns.FAVICON,
-                    BitmapFactory.decodeByteArray(data, 0, data.length));
-        }
-        map.putInt("id", mCursor.getInt(Browser.HISTORY_PROJECTION_ID_INDEX));
-        return map;
-    }
-
-    /**
-     *  Update a row in the database with new information. 
-     *  Requeries the database if the information has changed.
-     *  @param map  Bundle storing id, title and url of new information
-     */
-    public void updateRow(Bundle map) {
-
-        // Find the record
-        int id = map.getInt("id");
-        int position = -1;
-        for (mCursor.moveToFirst(); !mCursor.isAfterLast(); mCursor.moveToNext()) {
-            if (mCursor.getInt(Browser.HISTORY_PROJECTION_ID_INDEX) == id) {
-                position = mCursor.getPosition();
-                break;
-            }
-        }
-        if (position < 0) {
-            return;
+            thumbnail = BitmapFactory.decodeByteArray(data, 0, data.length);
         }
 
-        mCursor.moveToPosition(position);
-        ContentValues values = new ContentValues();
-        String title = map.getString(Browser.BookmarkColumns.TITLE);
-        if (!title.equals(mCursor
-                .getString(Browser.HISTORY_PROJECTION_TITLE_INDEX))) {
-            values.put(Browser.BookmarkColumns.TITLE, title);
-        }
-        String url = map.getString(Browser.BookmarkColumns.URL);
-        if (!url.equals(mCursor.
-                getString(Browser.HISTORY_PROJECTION_URL_INDEX))) {
-            values.put(Browser.BookmarkColumns.URL, url);
-        }
-
-        if (map.getBoolean("invalidateThumbnail") == true) {
-            values.put(Browser.BookmarkColumns.THUMBNAIL, new byte[0]);
-        }
-        if (values.size() > 0
-                && mContentResolver.update(Browser.BOOKMARKS_URI, values,
-                        "_id = " + id, null) != -1) {
-            refreshList();
-        }
-    }
-
-    /**
-     *  Delete a row from the database.  Requeries the database.  
-     *  Does nothing if the provided position is out of range.
-     *  @param position Position in the list.
-     */
-    public void deleteRow(int position) {
-        if (position < mExtraOffset || position >= getCount()) {
-            return;
-        }
-        mCursor.moveToPosition(position- mExtraOffset);
-        String url = mCursor.getString(Browser.HISTORY_PROJECTION_URL_INDEX);
-        String title = mCursor.getString(Browser.HISTORY_PROJECTION_TITLE_INDEX);
-        Bookmarks.removeFromBookmarks(null, mContentResolver, url, title);
-        refreshList();
-    }
-    
-    /**
-     *  Delete all bookmarks from the db. Requeries the database.  
-     *  All bookmarks with become visited URLs or if never visited 
-     *  are removed
-     */
-    public void deleteAllRows() {
-        StringBuilder deleteIds = null;
-        StringBuilder convertIds = null;
-        
-        for (mCursor.moveToFirst(); !mCursor.isAfterLast(); mCursor.moveToNext()) {
-            String url = mCursor.getString(Browser.HISTORY_PROJECTION_URL_INDEX);
-            WebIconDatabase.getInstance().releaseIconForPageUrl(url);
-            int id = mCursor.getInt(Browser.HISTORY_PROJECTION_ID_INDEX);
-            int numVisits = mCursor.getInt(Browser.HISTORY_PROJECTION_VISITS_INDEX);
-            if (0 == numVisits) {
-                if (deleteIds == null) {
-                    deleteIds = new StringBuilder();
-                    deleteIds.append("( ");
-                } else {
-                    deleteIds.append(" OR ( ");
-                }
-                deleteIds.append(BookmarkColumns._ID);
-                deleteIds.append(" = ");
-                deleteIds.append(id);
-                deleteIds.append(" )");
-            } else {
-                // It is no longer a bookmark, but it is still a visited site.
-                if (convertIds == null) {
-                    convertIds = new StringBuilder();
-                    convertIds.append("( ");
-                } else {
-                    convertIds.append(" OR ( ");
-                }
-                convertIds.append(BookmarkColumns._ID);
-                convertIds.append(" = ");
-                convertIds.append(id);
-                convertIds.append(" )");
-            }
-        }
-        
-        if (deleteIds != null) {
-            mContentResolver.delete(Browser.BOOKMARKS_URI, deleteIds.toString(), 
-                null);
-        }
-        if (convertIds != null) {
-            ContentValues values = new ContentValues();
-            values.put(Browser.BookmarkColumns.BOOKMARK, 0);
-            mContentResolver.update(Browser.BOOKMARKS_URI, values, 
-                    convertIds.toString(), null);
-        }
-        refreshList();
-    }
-
-    /**
-     *  Refresh list to recognize a change in the database.
-     */
-    public void refreshList() {
-        mCursor.requery();
-        mCount = mCursor.getCount() + mExtraOffset;
-        notifyDataSetChanged();
-    }
-
-    /**
-     * Update the bookmark's favicon. This is a convenience method for updating
-     * a bookmark favicon for the originalUrl and url of the passed in WebView.
-     * @param cr The ContentResolver to use.
-     * @param originalUrl The original url before any redirects.
-     * @param url The current url.
-     * @param favicon The favicon bitmap to write to the db.
-     */
-    /* package */ static void updateBookmarkFavicon(final ContentResolver cr,
-            final String originalUrl, final String url, final Bitmap favicon) {
-        new AsyncTask<Void, Void, Void>() {
-            protected Void doInBackground(Void... unused) {
-                final Cursor c =
-                        queryBookmarksForUrl(cr, originalUrl, url, true);
-                if (c == null) {
-                    return null;
-                }
-                if (c.moveToFirst()) {
-                    ContentValues values = new ContentValues();
-                    final ByteArrayOutputStream os =
-                            new ByteArrayOutputStream();
-                    favicon.compress(Bitmap.CompressFormat.PNG, 100, os);
-                    values.put(Browser.BookmarkColumns.FAVICON,
-                            os.toByteArray());
-                    do {
-                        cr.update(ContentUris.withAppendedId(
-                                Browser.BOOKMARKS_URI, c.getInt(0)),
-                                values, null, null);
-                    } while (c.moveToNext());
-                }
-                c.close();
-                return null;
-            }
-        }.execute();
-    }
-
-    /* package */ static Cursor queryBookmarksForUrl(ContentResolver cr,
-            String originalUrl, String url, boolean onlyBookmarks) {
-        if (cr == null || url == null) {
-            return null;
-        }
-
-        // If originalUrl is null, just set it to url.
-        if (originalUrl == null) {
-            originalUrl = url;
-        }
-
-        // Look for both the original url and the actual url. This takes in to
-        // account redirects.
-        String originalUrlNoQuery = removeQuery(originalUrl);
-        String urlNoQuery = removeQuery(url);
-        originalUrl = originalUrlNoQuery + '?';
-        url = urlNoQuery + '?';
-
-        // Use NoQuery to search for the base url (i.e. if the url is
-        // http://www.yahoo.com/?rs=1, search for http://www.yahoo.com)
-        // Use url to match the base url with other queries (i.e. if the url is
-        // http://www.google.com/m, search for
-        // http://www.google.com/m?some_query)
-        final String[] selArgs = new String[] {
-            originalUrlNoQuery, urlNoQuery, originalUrl, url };
-        String where = BookmarkColumns.URL + " == ? OR "
-                + BookmarkColumns.URL + " == ? OR "
-                + BookmarkColumns.URL + " LIKE ? || '%' OR "
-                + BookmarkColumns.URL + " LIKE ? || '%'";
-        if (onlyBookmarks) {
-            where = "(" + where + ") AND " + BookmarkColumns.BOOKMARK + " == 1";
-        }
-        final String[] projection =
-                new String[] { Browser.BookmarkColumns._ID };
-        return cr.query(Browser.BOOKMARKS_URI, projection, where, selArgs,
-                null);
-    }
-
-    // Strip the query from the given url.
-    private static String removeQuery(String url) {
-        if (url == null) {
-            return null;
-        }
-        int query = url.indexOf('?');
-        String noQuery = url;
-        if (query != -1) {
-            noQuery = url.substring(0, query);
-        }
-        return noQuery;
-    }
-
-    /**
-     * How many items should be displayed in the list.
-     * @return Count of items.
-     */
-    public int getCount() {
-        if (mDataValid) {
-            return mCount;
+        if (thumbnail == null) {
+            thumb.setImageResource(R.drawable.browser_thumbnail);
         } else {
-            return 0;
-        }
-    }
-
-    public boolean areAllItemsEnabled() {
-        return true;
-    }
-
-    public boolean isEnabled(int position) {
-        return true;
-    }
-
-    /**
-     * Get the data associated with the specified position in the list.
-     * @param position Index of the item whose data we want.
-     * @return The data at the specified position.
-     */
-    public Object getItem(int position) {
-        return null;
-    }
-
-    /**
-     * Get the row id associated with the specified position in the list.
-     * @param position Index of the item whose row id we want.
-     * @return The id of the item at the specified position.
-     */
-    public long getItemId(int position) {
-        return position;
-    }
-
-    /* package */ void switchViewMode(BookmarkViewMode viewMode) {
-        mViewMode = viewMode;
-    }
-
-    /* package */ void populateBookmarkItem(BookmarkItem b, int position) {
-        mCursor.moveToPosition(position - mExtraOffset);
-        String url = mCursor.getString(Browser.HISTORY_PROJECTION_URL_INDEX);
-        b.setUrl(url);
-        b.setName(mCursor.getString(Browser.HISTORY_PROJECTION_TITLE_INDEX));
-        byte[] data = mCursor.getBlob(Browser.HISTORY_PROJECTION_FAVICON_INDEX);
-        Bitmap bitmap = null;
-        if (data == null) {
-            bitmap = CombinedBookmarkHistoryActivity.getIconListenerSet()
-                    .getFavicon(url);
-        } else {
-            bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
-        }
-        b.setFavicon(bitmap);
-    }
-
-    /**
-     * Get a View that displays the data at the specified position
-     * in the list.
-     * @param position Index of the item whose view we want.
-     * @return A View corresponding to the data at the specified position.
-     */
-    public View getView(int position, View convertView, ViewGroup parent) {
-        if (!mDataValid) {
-            throw new IllegalStateException(
-                    "this should only be called when the cursor is valid");
-        }
-        if (position < 0 || position > mCount) {
-            throw new AssertionError(
-                    "BrowserBookmarksAdapter tried to get a view out of range");
-        }
-        if (mViewMode == BookmarkViewMode.GRID) {
-            if (convertView == null || convertView instanceof AddNewBookmark
-                    || convertView instanceof BookmarkItem) {
-                LayoutInflater factory = LayoutInflater.from(mBookmarksPage);
-                convertView
-                        = factory.inflate(R.layout.bookmark_thumbnail, null);
-            }
-            View holder = convertView.findViewById(R.id.holder);
-            ImageView thumb = (ImageView) convertView.findViewById(R.id.thumb);
-            TextView tv = (TextView) convertView.findViewById(R.id.label);
-
-            if (0 == position && mNeedsOffset) {
-                // This is to create a bookmark for the current page.
-                holder.setVisibility(View.VISIBLE);
-                tv.setText(mCurrentTitle);
-
-                if (mCurrentThumbnail != null) {
-                    thumb.setImageBitmap(mCurrentThumbnail);
-                } else {
-                    thumb.setImageResource(
-                            R.drawable.browser_thumbnail);
-                }
-                return convertView;
-            }
-            holder.setVisibility(View.GONE);
-            mCursor.moveToPosition(position - mExtraOffset);
-            tv.setText(mCursor.getString(
-                    Browser.HISTORY_PROJECTION_TITLE_INDEX));
-            Bitmap thumbnail = getScreenshot(position);
-            if (thumbnail == null) {
-                thumb.setImageResource(R.drawable.browser_thumbnail);
-            } else {
-                thumb.setImageBitmap(thumbnail);
-            }
-
-            return convertView;
-
-        }
-        if (position == 0 && mNeedsOffset) {
-            AddNewBookmark b;
-            if (convertView instanceof AddNewBookmark) {
-                b = (AddNewBookmark) convertView;
-            } else {
-                b = new AddNewBookmark(mBookmarksPage);
-            }
-            b.setUrl(mCurrentPage);
-            return b;
-        }
-        if (mMostVisited) {
-            if (convertView == null || !(convertView instanceof HistoryItem)) {
-                convertView = new HistoryItem(mBookmarksPage);
-            }
-        } else {
-            if (convertView == null || !(convertView instanceof BookmarkItem)) {
-                convertView = new BookmarkItem(mBookmarksPage);
-            }
-        }
-        bind((BookmarkItem) convertView, position);
-        if (mMostVisited) {
-            ((HistoryItem) convertView).setIsBookmark(
-                    getIsBookmark(position));
-        }
-        return convertView;
-    }
-
-    /**
-     *  Return the title for this item in the list.
-     */
-    public String getTitle(int position) {
-        return getString(Browser.HISTORY_PROJECTION_TITLE_INDEX, position);
-    }
-
-    /**
-     *  Return the Url for this item in the list.
-     */
-    public String getUrl(int position) {
-        return getString(Browser.HISTORY_PROJECTION_URL_INDEX, position);
-    }
-
-    /**
-     * Return the screenshot for this item in the list.
-     */
-    public Bitmap getScreenshot(int position) {
-        return getBitmap(Browser.HISTORY_PROJECTION_THUMBNAIL_INDEX, position);
-    }
-
-    /**
-     * Return the favicon for this item in the list.
-     */
-    public Bitmap getFavicon(int position) {
-        return getBitmap(Browser.HISTORY_PROJECTION_FAVICON_INDEX, position);
-    }
-
-    public Bitmap getTouchIcon(int position) {
-        return getBitmap(Browser.HISTORY_PROJECTION_TOUCH_ICON_INDEX, position);
-    }
-
-    private Bitmap getBitmap(int cursorIndex, int position) {
-        if (position < mExtraOffset || position > mCount) {
-            return null;
-        }
-        mCursor.moveToPosition(position - mExtraOffset);
-        byte[] data = mCursor.getBlob(cursorIndex);
-        if (data == null) {
-            return null;
-        }
-        return BitmapFactory.decodeByteArray(data, 0, data.length);
-    }
-
-    /**
-     * Return whether or not this item represents a bookmarked site.
-     */
-    public boolean getIsBookmark(int position) {
-        if (position < mExtraOffset || position > mCount) {
-            return false;
-        }
-        mCursor.moveToPosition(position - mExtraOffset);
-        return (1 == mCursor.getInt(Browser.HISTORY_PROJECTION_BOOKMARK_INDEX));
-    }
-
-    /**
-     * Private helper function to return the title or url.
-     */
-    private String getString(int cursorIndex, int position) {
-        if (position < mExtraOffset || position > mCount) {
-            return "";
-        }
-        mCursor.moveToPosition(position- mExtraOffset);
-        return mCursor.getString(cursorIndex);
-    }
-
-    private void bind(BookmarkItem b, int position) {
-        mCursor.moveToPosition(position- mExtraOffset);
-
-        b.setName(mCursor.getString(Browser.HISTORY_PROJECTION_TITLE_INDEX));
-        String url = mCursor.getString(Browser.HISTORY_PROJECTION_URL_INDEX);
-        b.setUrl(url);
-        byte[] data = mCursor.getBlob(Browser.HISTORY_PROJECTION_FAVICON_INDEX);
-        if (data != null) {
-            b.setFavicon(BitmapFactory.decodeByteArray(data, 0, data.length));
-        } else {
-            b.setFavicon(CombinedBookmarkHistoryActivity.getIconListenerSet()
-                    .getFavicon(url));
-        }
-    }
-
-    private class ChangeObserver extends ContentObserver {
-        public ChangeObserver() {
-            super(new Handler(Looper.getMainLooper()));
-        }
-
-        @Override
-        public boolean deliverSelfNotifications() {
-            return true;
-        }
-
-        @Override
-        public void onChange(boolean selfChange) {
-            refreshList();
-        }
-    }
-    
-    private class MyDataSetObserver extends DataSetObserver {
-        @Override
-        public void onChanged() {
-            mDataValid = true;
-            notifyDataSetChanged();
-        }
-
-        @Override
-        public void onInvalidated() {
-            mDataValid = false;
-            notifyDataSetInvalidated();
+            thumb.setImageBitmap(thumbnail);
         }
     }
 }
diff --git a/src/com/android/browser/BrowserBookmarksPage.java b/src/com/android/browser/BrowserBookmarksPage.java
index 4d5c5fa..40fd1e1 100644
--- a/src/com/android/browser/BrowserBookmarksPage.java
+++ b/src/com/android/browser/BrowserBookmarksPage.java
@@ -16,60 +16,115 @@
 
 package com.android.browser;
 
+import com.android.browser.provider.BrowserContract;
+
 import android.app.Activity;
 import android.app.AlertDialog;
+import android.app.LoaderManager;
 import android.content.ClipboardManager;
+import android.content.ClippedData;
+import android.content.ContentUris;
+import android.content.ContentValues;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
-import android.content.SharedPreferences;
-import android.content.SharedPreferences.Editor;
+import android.content.Loader;
+import android.database.Cursor;
 import android.graphics.Bitmap;
-import android.os.AsyncTask;
+import android.graphics.BitmapFactory;
+import android.net.Uri;
 import android.os.Bundle;
-import android.os.Handler;
-import android.os.Message;
-import android.os.ServiceManager;
 import android.provider.Browser;
-import android.util.Log;
+import android.util.Pair;
 import android.view.ContextMenu;
-import android.view.Menu;
+import android.view.ContextMenu.ContextMenuInfo;
 import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
+import android.view.View.OnClickListener;
 import android.view.ViewGroup;
-import android.view.ContextMenu.ContextMenuInfo;
 import android.webkit.WebIconDatabase.IconListener;
 import android.widget.AdapterView;
-import android.widget.GridView;
-import android.widget.ListView;
-import android.widget.Toast;
 import android.widget.AdapterView.OnItemClickListener;
+import android.widget.Button;
+import android.widget.GridView;
+import android.widget.Toast;
 
-/*package*/ enum BookmarkViewMode { NONE, GRID, LIST }
+import java.util.Stack;
+
 /**
  *  View showing the user's bookmarks in the browser.
  */
-public class BrowserBookmarksPage extends Activity implements
-        View.OnCreateContextMenuListener {
+public class BrowserBookmarksPage extends Activity implements View.OnCreateContextMenuListener,
+        LoaderManager.LoaderCallbacks<Cursor>, OnItemClickListener, IconListener, OnClickListener {
 
-    private BookmarkViewMode        mViewMode = BookmarkViewMode.NONE;
-    private GridView                mGridPage;
-    private ListView                mVerticalList;
-    private BrowserBookmarksAdapter mBookmarksAdapter;
-    private static final int        BOOKMARKS_SAVE = 1;
-    private boolean                 mDisableNewWindow;
-    private BookmarkItem            mContextHeader;
-    private AddNewBookmark          mAddHeader;
-    private boolean                 mCanceled = false;
-    private boolean                 mCreateShortcut;
-    private boolean                 mMostVisited;
-    private View                    mEmptyView;
-    private int                     mIconSize;
+    static final int BOOKMARKS_SAVE = 1;
+    static final String LOGTAG = "browser";
 
-    private final static String LOGTAG = "browser";
-    private final static String PREF_BOOKMARK_VIEW_MODE = "pref_bookmark_view_mode";
-    private final static String PREF_MOST_VISITED_VIEW_MODE = "pref_most_visited_view_mode";
+    static final int LOADER_BOOKMARKS = 1;
+
+    GridView mGrid;
+    BrowserBookmarksAdapter mAdapter;
+    boolean mDisableNewWindow;
+    BookmarkItem mContextHeader;
+    boolean mCanceled = false;
+    boolean mCreateShortcut;
+    View mEmptyView;
+    View mContentView;
+    Stack<Pair<String, Uri>> mFolderStack = new Stack<Pair<String, Uri>>();
+    Button mUpButton;
+
+    @Override
+    public Loader<Cursor> onCreateLoader(int id, Bundle args) {
+        switch (id) {
+            case LOADER_BOOKMARKS: {
+                int rootFolder = 0;
+                if (args != null) {
+                    args.getInt(BookmarksLoader.ARG_ROOT_FOLDER, 0);
+                }
+                return new BookmarksLoader(this, rootFolder);
+            }
+        }
+        throw new UnsupportedOperationException("Unknown loader id " + id);
+    }
+
+    @Override
+    public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
+        // Set the visibility of the empty vs. content views
+        if (data == null || data.getCount() == 0) {
+            mEmptyView.setVisibility(View.VISIBLE);
+            mContentView.setVisibility(View.GONE);
+        } else {
+            mEmptyView.setVisibility(View.GONE);
+            mContentView.setVisibility(View.VISIBLE);
+        }
+
+        // Fill in the "up" button if needed
+        BookmarksLoader bl = (BookmarksLoader) loader;
+        boolean rootFolder = 
+                (BrowserContract.Bookmarks.CONTENT_URI_DEFAULT_FOLDER.equals(bl.getUri()));
+        if (rootFolder) {
+            mUpButton.setText(R.string.defaultBookmarksUpButton);
+            mUpButton.setEnabled(false);
+        } else {
+            mUpButton.setText(mFolderStack.peek().first);
+            mUpButton.setEnabled(true);
+        }
+
+        // Give the new data to the adapter
+        mAdapter.changeCursor(data);
+    }
+
+    @Override
+    public void onClick(View view) {
+        if (view == mUpButton) {
+            Pair<String, Uri> pair = mFolderStack.pop();
+            BookmarksLoader loader = 
+                    (BookmarksLoader) ((Loader) getLoaderManager().getLoader(LOADER_BOOKMARKS));
+            loader.setUri(pair.second);
+            loader.forceLoad();
+        }
+    }
 
     @Override
     public boolean onContextItemSelected(MenuItem item) {
@@ -86,9 +141,6 @@
         }
 
         switch (item.getItemId()) {
-        case R.id.new_context_menu_id:
-            saveCurrentPage();
-            break;
         case R.id.open_context_menu_id:
             loadUrl(i.position);
             break;
@@ -99,117 +151,88 @@
             sendBroadcast(createShortcutIntent(i.position));
             break;
         case R.id.delete_context_menu_id:
-            if (mMostVisited) {
-                Browser.deleteFromHistory(getContentResolver(),
-                        getUrl(i.position));
-                refreshList();
-            } else {
-                displayRemoveBookmarkDialog(i.position);
-            }
+            displayRemoveBookmarkDialog(i.position);
             break;
         case R.id.new_window_context_menu_id:
             openInNewWindow(i.position);
             break;
-        case R.id.share_link_context_menu_id:
+        case R.id.share_link_context_menu_id: {
+            Cursor cursor = (Cursor) mAdapter.getItem(i.position);
             BrowserActivity.sharePage(BrowserBookmarksPage.this,
-                    mBookmarksAdapter.getTitle(i.position), getUrl(i.position),
-                    getFavicon(i.position),
-                    mBookmarksAdapter.getScreenshot(i.position));
+                    cursor.getString(BookmarksLoader.COLUMN_INDEX_TITLE),
+                    cursor.getString(BookmarksLoader.COLUMN_INDEX_URL),
+                    getBitmap(cursor, BookmarksLoader.COLUMN_INDEX_FAVICON),
+                    getBitmap(cursor, BookmarksLoader.COLUMN_INDEX_THUMBNAIL));
             break;
+        }
         case R.id.copy_url_context_menu_id:
             copy(getUrl(i.position));
             break;
-        case R.id.homepage_context_menu_id:
+        case R.id.homepage_context_menu_id: {
             BrowserSettings.getInstance().setHomePage(this,
                     getUrl(i.position));
             Toast.makeText(this, R.string.homepage_set,
                     Toast.LENGTH_LONG).show();
             break;
+        }
         // Only for the Most visited page
-        case R.id.save_to_bookmarks_menu_id:
-            boolean isBookmark;
-            String name;
-            String url;
-            if (mViewMode == BookmarkViewMode.GRID) {
-                isBookmark = mBookmarksAdapter.getIsBookmark(i.position);
-                name = mBookmarksAdapter.getTitle(i.position);
-                url = mBookmarksAdapter.getUrl(i.position);
-            } else {
-                HistoryItem historyItem = ((HistoryItem) i.targetView);
-                isBookmark = historyItem.isBookmark();
-                name = historyItem.getName();
-                url = historyItem.getUrl();
-            }
+        case R.id.save_to_bookmarks_menu_id: {
+            Cursor cursor = (Cursor) mAdapter.getItem(i.position);
+            String name = cursor.getString(BookmarksLoader.COLUMN_INDEX_TITLE);
+            String url = cursor.getString(BookmarksLoader.COLUMN_INDEX_URL);
             // If the site is bookmarked, the item becomes remove from
             // bookmarks.
-            if (isBookmark) {
-                Bookmarks.removeFromBookmarks(this, getContentResolver(), url, name);
-            } else {
-                Browser.saveBookmark(this, name, url);
-            }
+            Bookmarks.removeFromBookmarks(this, getContentResolver(), url, name);
             break;
+        }
         default:
             return super.onContextItemSelected(item);
         }
         return true;
     }
 
-    @Override
-    public void onCreateContextMenu(ContextMenu menu, View v,
-                ContextMenuInfo menuInfo) {
-            AdapterView.AdapterContextMenuInfo i =
-                    (AdapterView.AdapterContextMenuInfo) menuInfo;
-
-            MenuInflater inflater = getMenuInflater();
-            if (mMostVisited) {
-                inflater.inflate(R.menu.historycontext, menu);
-            } else {
-                inflater.inflate(R.menu.bookmarkscontext, menu);
-            }
-
-            if (0 == i.position && !mMostVisited) {
-                menu.setGroupVisible(R.id.CONTEXT_MENU, false);
-                if (mAddHeader == null) {
-                    mAddHeader = new AddNewBookmark(BrowserBookmarksPage.this);
-                } else if (mAddHeader.getParent() != null) {
-                    ((ViewGroup) mAddHeader.getParent()).
-                            removeView(mAddHeader);
-                }
-                mAddHeader.setUrl(getIntent().getStringExtra("url"));
-                menu.setHeaderView(mAddHeader);
-                return;
-            }
-            if (mMostVisited) {
-                if ((mViewMode == BookmarkViewMode.LIST
-                        && ((HistoryItem) i.targetView).isBookmark())
-                        || mBookmarksAdapter.getIsBookmark(i.position)) {
-                    MenuItem item = menu.findItem(
-                            R.id.save_to_bookmarks_menu_id);
-                    item.setTitle(R.string.remove_from_bookmarks);
-                }
-            } else {
-                // The historycontext menu has no ADD_MENU group.
-                menu.setGroupVisible(R.id.ADD_MENU, false);
-            }
-            if (mDisableNewWindow) {
-                menu.findItem(R.id.new_window_context_menu_id).setVisible(
-                        false);
-            }
-            if (mContextHeader == null) {
-                mContextHeader = new BookmarkItem(BrowserBookmarksPage.this);
-            } else if (mContextHeader.getParent() != null) {
-                ((ViewGroup) mContextHeader.getParent()).
-                        removeView(mContextHeader);
-            }
-            if (mViewMode == BookmarkViewMode.GRID) {
-                mBookmarksAdapter.populateBookmarkItem(mContextHeader,
-                        i.position);
-            } else {
-                BookmarkItem b = (BookmarkItem) i.targetView;
-                b.copyTo(mContextHeader);
-            }
-            menu.setHeaderView(mContextHeader);
+    Bitmap getBitmap(Cursor cursor, int columnIndex) {
+        byte[] data = cursor.getBlob(columnIndex);
+        if (data == null) {
+            return null;
         }
+        return BitmapFactory.decodeByteArray(data, 0, data.length);
+    }
+
+    @Override
+    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
+        AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
+        
+        MenuInflater inflater = getMenuInflater();
+        inflater.inflate(R.menu.bookmarkscontext, menu);
+
+        if (mDisableNewWindow) {
+            menu.findItem(R.id.new_window_context_menu_id).setVisible(false);
+        }
+
+        if (mContextHeader == null) {
+            mContextHeader = new BookmarkItem(BrowserBookmarksPage.this);
+        } else if (mContextHeader.getParent() != null) {
+            ((ViewGroup) mContextHeader.getParent()).removeView(mContextHeader);
+        }
+
+        populateBookmarkItem(mAdapter, mContextHeader, info.position);
+
+        menu.setHeaderView(mContextHeader);
+    }
+
+    private void populateBookmarkItem(BrowserBookmarksAdapter adapter, BookmarkItem item,
+            int position) {
+        Cursor cursor = (Cursor) mAdapter.getItem(position);
+        String url = cursor.getString(BookmarksLoader.COLUMN_INDEX_URL);
+        item.setUrl(url);
+        item.setName(cursor.getString(BookmarksLoader.COLUMN_INDEX_TITLE));
+        Bitmap bitmap = getBitmap(cursor, BookmarksLoader.COLUMN_INDEX_FAVICON);
+        if (bitmap == null) {
+            bitmap = CombinedBookmarkHistoryActivity.getIconListenerSet().getFavicon(url);
+        }
+        item.setFavicon(bitmap);
+    }
 
     /**
      *  Create a new BrowserBookmarksPage.
@@ -218,339 +241,126 @@
     protected void onCreate(Bundle icicle) {
         super.onCreate(icicle);
 
-        // Grab the app icon size as a resource.
-        mIconSize = getResources().getDimensionPixelSize(
-                android.R.dimen.app_icon_size);
-
         Intent intent = getIntent();
         if (Intent.ACTION_CREATE_SHORTCUT.equals(intent.getAction())) {
             mCreateShortcut = true;
-        }
-        mDisableNewWindow = intent.getBooleanExtra("disable_new_window",
-                false);
-        mMostVisited = intent.getBooleanExtra("mostVisited", false);
-
-        if (mCreateShortcut) {
             setTitle(R.string.browser_bookmarks_page_bookmarks_text);
         }
+        mDisableNewWindow = intent.getBooleanExtra("disable_new_window", false);
 
-        setContentView(R.layout.empty_history);
-        mEmptyView = findViewById(R.id.empty_view);
-        mEmptyView.setVisibility(View.GONE);
+        setContentView(R.layout.bookmarks);
+        mEmptyView = findViewById(android.R.id.empty);
+        mContentView = findViewById(android.R.id.content);
 
-        SharedPreferences p = getPreferences(MODE_PRIVATE);
-
-        // See if the user has set a preference for the view mode of their
-        // bookmarks. Otherwise default to grid mode.
-        BookmarkViewMode preference = BookmarkViewMode.NONE;
-        if (mMostVisited) {
-            // For the most visited page, only use list mode.
-            preference = BookmarkViewMode.LIST;
-        } else {
-            preference = BookmarkViewMode.values()[p.getInt(
-                    PREF_BOOKMARK_VIEW_MODE, BookmarkViewMode.GRID.ordinal())];
+        mGrid = (GridView) findViewById(R.id.grid);
+        mGrid.setOnItemClickListener(this);
+        mGrid.setColumnWidth(
+                BrowserActivity.getDesiredThumbnailWidth(this));
+        if (!mCreateShortcut) {
+            mGrid.setOnCreateContextMenuListener(this);
         }
-        switchViewMode(preference);
 
-        final boolean createShortcut = mCreateShortcut;
-        final boolean mostVisited = mMostVisited;
-        final String url = intent.getStringExtra("url");
-        final String title = intent.getStringExtra("title");
-        final Bitmap thumbnail =
-                (Bitmap) intent.getParcelableExtra("thumbnail");
-        new AsyncTask<Void, Void, Void>() {
-            @Override
-            protected Void doInBackground(Void... unused) {
-                BrowserBookmarksAdapter adapter =
-                    new BrowserBookmarksAdapter(
-                            BrowserBookmarksPage.this,
-                            url,
-                            title,
-                            thumbnail,
-                            createShortcut,
-                            mostVisited);
-                mHandler.obtainMessage(ADAPTER_CREATED, adapter).sendToTarget();
-                return null;
-            }
-        }.execute();
+        mUpButton = (Button) findViewById(R.id.up);
+        mUpButton.setEnabled(false);
+        mUpButton.setOnClickListener(this);
+
+        mAdapter = new BrowserBookmarksAdapter(this);
+        mGrid.setAdapter(mAdapter);
+
+        // Start the loader for the bookmark data
+        getLoaderManager().initLoader(LOADER_BOOKMARKS, null, this);
+
+        // Add our own listener in case there are favicons that have yet to be loaded.
+        CombinedBookmarkHistoryActivity.getIconListenerSet().addListener(this);
     }
 
     @Override
-    protected void onDestroy() {
-        mHandler.removeCallbacksAndMessages(null);
-        super.onDestroy();
+    public void onReceivedIcon(String url, Bitmap icon) {
+        // A new favicon has been loaded, so let anything attached to the adapter know about it
+        // so new icons will be loaded.
+        mAdapter.notifyDataSetChanged();
     }
 
-    /**
-     *  Set the ContentView to be either the grid of thumbnails or the vertical
-     *  list.
-     */
-    private void switchViewMode(BookmarkViewMode viewMode) {
-        if (mViewMode == viewMode) {
+    @Override
+    public void onItemClick(AdapterView parent, View v, int position, long id) {
+        // It is possible that the view has been canceled when we get to
+        // this point as back has a higher priority
+        if (mCanceled) {
+            android.util.Log.e(LOGTAG, "item clicked when dismissing");
+            return;
+        }
+        if (mCreateShortcut) {
+            setResultToParent(RESULT_OK, createShortcutIntent(position));
+            finish();
             return;
         }
 
-        mViewMode = viewMode;
-
-        // Update the preferences to make the new view mode sticky.
-        SharedPreferences preferences = getPreferences(MODE_PRIVATE);
-        Editor ed = preferences.edit();
-        int pref = mViewMode.ordinal();
-        if (mMostVisited && preferences.getInt(PREF_MOST_VISITED_VIEW_MODE, -1) != pref) {
-            ed.putInt(PREF_MOST_VISITED_VIEW_MODE, pref);
-        } else if (!mMostVisited && preferences.getInt(PREF_BOOKMARK_VIEW_MODE, -1) != pref) {
-            ed.putInt(PREF_BOOKMARK_VIEW_MODE, pref);
-        }
-        ed.commit();
-
-        if (mBookmarksAdapter != null) {
-            mBookmarksAdapter.switchViewMode(viewMode);
-        }
-        if (mViewMode == BookmarkViewMode.GRID) {
-            if (mGridPage == null) {
-                mGridPage = new GridView(this);
-                if (mBookmarksAdapter != null) {
-                    mGridPage.setAdapter(mBookmarksAdapter);
-                }
-                mGridPage.setOnItemClickListener(mListener);
-                mGridPage.setNumColumns(GridView.AUTO_FIT);
-                mGridPage.setColumnWidth(
-                        BrowserActivity.getDesiredThumbnailWidth(this));
-                mGridPage.setFocusable(true);
-                mGridPage.setFocusableInTouchMode(true);
-                mGridPage.setSelector(android.R.drawable.gallery_thumb);
-                float density = getResources().getDisplayMetrics().density;
-                mGridPage.setVerticalSpacing((int) (14 * density));
-                mGridPage.setHorizontalSpacing((int) (8 * density));
-                mGridPage.setStretchMode(GridView.STRETCH_SPACING);
-                mGridPage.setScrollBarStyle(View.SCROLLBARS_INSIDE_INSET);
-                mGridPage.setDrawSelectorOnTop(true);
-                if (mMostVisited) {
-                    mGridPage.setEmptyView(mEmptyView);
-                }
-                if (!mCreateShortcut) {
-                    mGridPage.setOnCreateContextMenuListener(this);
-                }
-            }
-            addContentView(mGridPage, FULL_SCREEN_PARAMS);
-            if (mVerticalList != null) {
-                ViewGroup parent = (ViewGroup) mVerticalList.getParent();
-                if (parent != null) {
-                    parent.removeView(mVerticalList);
-                }
-            }
+        Cursor cursor = (Cursor) mAdapter.getItem(position);
+        boolean isFolder = cursor.getInt(BookmarksLoader.COLUMN_INDEX_IS_FOLDER) != 0;
+        if (!isFolder) {
+            loadUrl(position);
         } else {
-            if (null == mVerticalList) {
-                ListView listView = new ListView(this);
-                if (mBookmarksAdapter != null) {
-                    listView.setAdapter(mBookmarksAdapter);
-                }
-                listView.setDrawSelectorOnTop(false);
-                listView.setVerticalScrollBarEnabled(true);
-                listView.setOnItemClickListener(mListListener);
-                if (mMostVisited) {
-                    listView.setEmptyView(mEmptyView);
-                }
-                if (!mCreateShortcut) {
-                    listView.setOnCreateContextMenuListener(this);
-                }
-                mVerticalList = listView;
+            String title;
+            if (mFolderStack.size() != 0) {
+                title = cursor.getString(BookmarksLoader.COLUMN_INDEX_TITLE);
+            } else {
+                // TODO localize
+                title = "Bookmarks"; 
             }
-            addContentView(mVerticalList, FULL_SCREEN_PARAMS);
-            if (mGridPage != null) {
-                ViewGroup parent = (ViewGroup) mGridPage.getParent();
-                if (parent != null) {
-                    parent.removeView(mGridPage);
-                }
-            }
+            LoaderManager manager = getLoaderManager();
+            BookmarksLoader loader = 
+                    (BookmarksLoader) ((Loader) manager.getLoader(LOADER_BOOKMARKS));
+            mFolderStack.push(new Pair(title, loader.getUri()));
+            Uri uri = ContentUris.withAppendedId(
+                    BrowserContract.Bookmarks.CONTENT_URI_DEFAULT_FOLDER, id);
+            loader.setUri(uri);
+            loader.forceLoad();
         }
     }
 
-    private static final ViewGroup.LayoutParams FULL_SCREEN_PARAMS
-            = new ViewGroup.LayoutParams(
-            ViewGroup.LayoutParams.MATCH_PARENT,
-            ViewGroup.LayoutParams.MATCH_PARENT);
-
-    private static final int SAVE_CURRENT_PAGE = 1000;
-    private static final int ADAPTER_CREATED = 1001;
-    private final Handler mHandler = new Handler() {
-        @Override
-        public void handleMessage(Message msg) {
-            switch (msg.what) {
-                case SAVE_CURRENT_PAGE:
-                    saveCurrentPage();
-                    break;
-                case ADAPTER_CREATED:
-                    mBookmarksAdapter = (BrowserBookmarksAdapter) msg.obj;
-                    mBookmarksAdapter.switchViewMode(mViewMode);
-                    if (mGridPage != null) {
-                        mGridPage.setAdapter(mBookmarksAdapter);
-                    }
-                    if (mVerticalList != null) {
-                        mVerticalList.setAdapter(mBookmarksAdapter);
-                    }
-                    // Add our own listener in case there are favicons that
-                    // have yet to be loaded.
-                    if (mMostVisited) {
-                        IconListener listener = new IconListener() {
-                            public void onReceivedIcon(String url,
-                                    Bitmap icon) {
-                                if (mGridPage != null) {
-                                    mGridPage.setAdapter(mBookmarksAdapter);
-                                }
-                                if (mVerticalList != null) {
-                                    mVerticalList.setAdapter(mBookmarksAdapter);
-                                }
-                            }
-                        };
-                        CombinedBookmarkHistoryActivity.getIconListenerSet()
-                                .addListener(listener);
-                    }
-                    break;
-            }
-        }
-    };
-
-    private OnItemClickListener mListener = new OnItemClickListener() {
-        public void onItemClick(AdapterView parent, View v, int position, long id) {
-            // It is possible that the view has been canceled when we get to
-            // this point as back has a higher priority
-            if (mCanceled) {
-                android.util.Log.e(LOGTAG, "item clicked when dismissing");
-                return;
-            }
-            if (!mCreateShortcut) {
-                if (0 == position && !mMostVisited) {
-                    // XXX: Work-around for a framework issue.
-                    mHandler.sendEmptyMessage(SAVE_CURRENT_PAGE);
-                } else {
-                    loadUrl(position);
-                }
-            } else {
-                setResultToParent(RESULT_OK, createShortcutIntent(position));
-                finish();
-            }
-        }
-    };
-
-    private OnItemClickListener mListListener = new OnItemClickListener() {
-        public void onItemClick(AdapterView parent, View v, int position, long id) {
-            // It is possible that the view has been canceled when we get to
-            // this point as back has a higher priority
-            if (mCanceled) {
-                android.util.Log.e(LOGTAG, "item clicked when dismissing");
-                return;
-            }
-            if (!mCreateShortcut) {
-                if (0 == position && !mMostVisited) {
-                    // XXX: Work-around for a framework issue.
-                    mHandler.sendEmptyMessage(SAVE_CURRENT_PAGE);
-                } else {
-                    loadUrl(position);
-                }
-            } else {
-                setResultToParent(RESULT_OK, createShortcutIntent(position));
-                finish();
-            }
-        }
-    };
-
     private Intent createShortcutIntent(int position) {
-        String url = getUrl(position);
-        String title = getBookmarkTitle(position);
-        Bitmap touchIcon = getTouchIcon(position);
-        Bitmap favicon = getFavicon(position);
+        Cursor cursor = (Cursor) mAdapter.getItem(position);
+        String url = cursor.getString(BookmarksLoader.COLUMN_INDEX_URL);
+        String title = cursor.getString(BookmarksLoader.COLUMN_INDEX_URL);
+        Bitmap touchIcon = getBitmap(cursor, BookmarksLoader.COLUMN_INDEX_TOUCH_ICON);
+        Bitmap favicon = getBitmap(cursor, BookmarksLoader.COLUMN_INDEX_FAVICON);
         return BookmarkUtils.createAddToHomeIntent(this, url, title, touchIcon, favicon);
     }
 
-    private void saveCurrentPage() {
-        Intent i = new Intent(BrowserBookmarksPage.this,
-                AddBookmarkPage.class);
-        i.putExtras(getIntent());
-        startActivityForResult(i, BOOKMARKS_SAVE);
-    }
-
     private void loadUrl(int position) {
-        Intent intent = (new Intent()).setAction(getUrl(position));
+        Cursor cursor = (Cursor) mAdapter.getItem(position);
+        Intent intent = new Intent(cursor.getString(BookmarksLoader.COLUMN_INDEX_URL));
         setResultToParent(RESULT_OK, intent);
         finish();
     }
 
-    @Override
-    public boolean onCreateOptionsMenu(Menu menu) {
-        boolean result = super.onCreateOptionsMenu(menu);
-        if (!mCreateShortcut && !mMostVisited) {
-            MenuInflater inflater = getMenuInflater();
-            inflater.inflate(R.menu.bookmarks, menu);
-            return true;
-        }
-        return result;
-    }
-
-    @Override
-    public boolean onPrepareOptionsMenu(Menu menu) {
-        boolean result = super.onPrepareOptionsMenu(menu);
-        if (mCreateShortcut || mMostVisited || mBookmarksAdapter == null
-                || mBookmarksAdapter.getCount() == 0) {
-            // No need to show the menu if there are no items.
-            return result;
-        }
-        MenuItem switchItem = menu.findItem(R.id.switch_mode_menu_id);
-        int titleResId;
-        int iconResId;
-        if (mViewMode == BookmarkViewMode.GRID) {
-            titleResId = R.string.switch_to_list;
-            iconResId = R.drawable.ic_menu_list;
-        } else {
-            titleResId = R.string.switch_to_thumbnails;
-            iconResId = R.drawable.ic_menu_thumbnail;
-        }
-        switchItem.setTitle(titleResId);
-        switchItem.setIcon(iconResId);
-        return true;
-    }
-
-    @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
-        switch (item.getItemId()) {
-        case R.id.new_context_menu_id:
-            saveCurrentPage();
-            break;
-
-        case R.id.switch_mode_menu_id:
-            if (mViewMode == BookmarkViewMode.GRID) {
-                switchViewMode(BookmarkViewMode.LIST);
-            } else {
-                switchViewMode(BookmarkViewMode.GRID);
-            }
-            break;
-
-        default:
-            return super.onOptionsItemSelected(item);
-        }
-        return true;
-    }
-
     private void openInNewWindow(int position) {
         Bundle b = new Bundle();
         b.putBoolean("new_window", true);
-        setResultToParent(RESULT_OK,
-                (new Intent()).setAction(getUrl(position)).putExtras(b));
-
+        setResultToParent(RESULT_OK, (new Intent(getUrl(position))).putExtras(b));
         finish();
     }
 
-
     private void editBookmark(int position) {
-        Intent intent = new Intent(BrowserBookmarksPage.this,
-            AddBookmarkPage.class);
-        intent.putExtra("bookmark", getRow(position));
+        Intent intent = new Intent(this, AddBookmarkPage.class);
+        Cursor cursor = (Cursor) mAdapter.getItem(position);
+        Bundle item = new Bundle();
+        item.putString(Browser.BookmarkColumns.TITLE, 
+                cursor.getString(BookmarksLoader.COLUMN_INDEX_TITLE));
+        item.putString(Browser.BookmarkColumns.URL, 
+                cursor.getString(BookmarksLoader.COLUMN_INDEX_URL));
+        byte[] data = cursor.getBlob(BookmarksLoader.COLUMN_INDEX_FAVICON);
+        if (data != null) {
+            item.putParcelable(Browser.BookmarkColumns.FAVICON,
+                    BitmapFactory.decodeByteArray(data, 0, data.length));
+        }
+        item.putInt("id", cursor.getInt(BookmarksLoader.COLUMN_INDEX_ID));
+        intent.putExtra("bookmark", item);
         startActivityForResult(intent, BOOKMARKS_SAVE);
     }
 
     @Override
-    protected void onActivityResult(int requestCode, int resultCode,
-                                    Intent data) {
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
         switch(requestCode) {
             case BOOKMARKS_SAVE:
                 if (resultCode == RESULT_OK) {
@@ -561,92 +371,93 @@
                         String title = extras.getString("title");
                         String url = extras.getString("url");
                         if (title != null && url != null) {
-                            mBookmarksAdapter.updateRow(extras);
+                            updateRow(extras);
                         }
-                    } else {
-                        // extras == null then a new bookmark was added to
-                        // the database.
-                        refreshList();
                     }
                 }
                 break;
-            default:
-                break;
         }
     }
 
-    private void displayRemoveBookmarkDialog(int position) {
+    /**
+     *  Update a row in the database with new information. 
+     *  Requeries the database if the information has changed.
+     *  @param map  Bundle storing id, title and url of new information
+     */
+    public void updateRow(Bundle map) {
+
+        // Find the record
+        int id = map.getInt("id");
+        int position = -1;
+        Cursor cursor = mAdapter.getCursor();
+        for (cursor.moveToFirst(); !cursor.isAfterLast(); cursor.moveToNext()) {
+            if (cursor.getInt(BookmarksLoader.COLUMN_INDEX_ID) == id) {
+                position = cursor.getPosition();
+                break;
+            }
+        }
+        if (position < 0) {
+            return;
+        }
+
+        cursor.moveToPosition(position);
+        ContentValues values = new ContentValues();
+        String title = map.getString(Browser.BookmarkColumns.TITLE);
+        if (!title.equals(cursor.getString(Browser.HISTORY_PROJECTION_TITLE_INDEX))) {
+            values.put(Browser.BookmarkColumns.TITLE, title);
+        }
+        String url = map.getString(Browser.BookmarkColumns.URL);
+        if (!url.equals(cursor.getString(Browser.HISTORY_PROJECTION_URL_INDEX))) {
+            values.put(Browser.BookmarkColumns.URL, url);
+        }
+
+        if (map.getBoolean("invalidateThumbnail") == true) {
+            values.put(Browser.BookmarkColumns.THUMBNAIL, new byte[0]);
+        }
+
+        if (values.size() > 0) {
+            getContentResolver().update(Browser.BOOKMARKS_URI, values,
+                    "_id = ?", new String[] { Integer.toString(id) });
+        }
+    }
+
+    private void displayRemoveBookmarkDialog(final int position) {
         // Put up a dialog asking if the user really wants to
         // delete the bookmark
-        final int deletePos = position;
+        Cursor cursor = (Cursor) mAdapter.getItem(position);
         new AlertDialog.Builder(this)
                 .setTitle(R.string.delete_bookmark)
                 .setIcon(android.R.drawable.ic_dialog_alert)
                 .setMessage(getText(R.string.delete_bookmark_warning).toString().replace(
-                        "%s", getBookmarkTitle(deletePos)))
+                        "%s", cursor.getString(BookmarksLoader.COLUMN_INDEX_TITLE)))
                 .setPositiveButton(R.string.ok,
                         new DialogInterface.OnClickListener() {
                             public void onClick(DialogInterface dialog, int whichButton) {
-                                deleteBookmark(deletePos);
+                                deleteBookmark(position);
                             }
                         })
                 .setNegativeButton(R.string.cancel, null)
                 .show();
     }
 
-    /**
-     *  Refresh the shown list after the database has changed.
-     */
-    private void refreshList() {
-        if (mBookmarksAdapter == null) return;
-        mBookmarksAdapter.refreshList();
+    private String getUrl(int position) {
+        Cursor cursor = (Cursor) mAdapter.getItem(position);
+        return cursor.getString(BookmarksLoader.COLUMN_INDEX_URL);
     }
-
-    /**
-     *  Return a hashmap representing the currently highlighted row.
-     */
-    public Bundle getRow(int position) {
-        return mBookmarksAdapter == null ? null
-                : mBookmarksAdapter.getRow(position);
-    }
-
-    /**
-     *  Return the url of the currently highlighted row.
-     */
-    public String getUrl(int position) {
-        return mBookmarksAdapter == null ? null
-                : mBookmarksAdapter.getUrl(position);
-    }
-
-    /**
-     * Return the favicon of the currently highlighted row.
-     */
-    public Bitmap getFavicon(int position) {
-        return mBookmarksAdapter == null ? null
-                : mBookmarksAdapter.getFavicon(position);
-    }
-
-    private Bitmap getTouchIcon(int position) {
-        return mBookmarksAdapter == null ? null
-                : mBookmarksAdapter.getTouchIcon(position);
-    }
-
+    
     private void copy(CharSequence text) {
-        ClipboardManager cm = (ClipboardManager)getSystemService(Context.CLIPBOARD_SERVICE);
-        cm.setText(text);
-    }
-
-    public String getBookmarkTitle(int position) {
-        return mBookmarksAdapter == null ? null
-                : mBookmarksAdapter.getTitle(position);
+        ClipboardManager cm = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
+        cm.setPrimaryClip(new ClippedData(null, null, new ClippedData.Item(text)));
     }
 
     /**
      *  Delete the currently highlighted row.
      */
     public void deleteBookmark(int position) {
-        if (mBookmarksAdapter == null) return;
-        mBookmarksAdapter.deleteRow(position);
+        Cursor cursor = (Cursor) mAdapter.getItem(position);
+        String url = cursor.getString(BookmarksLoader.COLUMN_INDEX_URL);
+        String title = cursor.getString(BookmarksLoader.COLUMN_INDEX_TITLE);
+        Bookmarks.removeFromBookmarks(null, getContentResolver(), url, title);
     }
 
     @Override
diff --git a/src/com/android/browser/BrowserProvider.java b/src/com/android/browser/BrowserProvider.java
index 36cc490..87c38e2 100644
--- a/src/com/android/browser/BrowserProvider.java
+++ b/src/com/android/browser/BrowserProvider.java
@@ -27,8 +27,8 @@
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
-import android.content.UriMatcher;
 import android.content.SharedPreferences.Editor;
+import android.content.UriMatcher;
 import android.content.res.Configuration;
 import android.database.AbstractCursor;
 import android.database.ContentObserver;
@@ -41,8 +41,8 @@
 import android.os.Process;
 import android.preference.PreferenceManager;
 import android.provider.Browser;
-import android.provider.Settings;
 import android.provider.Browser.BookmarkColumns;
+import android.provider.Settings;
 import android.speech.RecognizerResultsIntent;
 import android.text.TextUtils;
 import android.util.Log;
diff --git a/src/com/android/browser/CombinedBookmarkHistoryActivity.java b/src/com/android/browser/CombinedBookmarkHistoryActivity.java
index 64e8673..78fcb4b 100644
--- a/src/com/android/browser/CombinedBookmarkHistoryActivity.java
+++ b/src/com/android/browser/CombinedBookmarkHistoryActivity.java
@@ -54,7 +54,6 @@
     private boolean mNewTabMode;
 
     /* package */ static String BOOKMARKS_TAB = "bookmark";
-    /* package */ static String VISITED_TAB = "visited";
     /* package */ static String HISTORY_TAB = "history";
     /* package */ static String STARTING_TAB = "tab";
 
@@ -117,15 +116,6 @@
         createTab(bookmarksIntent, R.string.tab_bookmarks,
                 R.drawable.browser_bookmark_tab, BOOKMARKS_TAB);
 
-        Intent visitedIntent = new Intent(this, BrowserBookmarksPage.class);
-        // Need to copy extras so the bookmarks activity and this one will be
-        // different
-        Bundle visitedExtras = extras == null ? new Bundle() : new Bundle(extras);
-        visitedExtras.putBoolean("mostVisited", true);
-        visitedIntent.putExtras(visitedExtras);
-        createTab(visitedIntent, R.string.tab_most_visited,
-                R.drawable.browser_visited_tab, VISITED_TAB);
-
         Intent historyIntent = new Intent(this, BrowserHistoryPage.class);
         String defaultTab = null;
         if (extras != null) {
diff --git a/src/com/android/browser/DownloadTouchIcon.java b/src/com/android/browser/DownloadTouchIcon.java
index 765d288..2816f58 100644
--- a/src/com/android/browser/DownloadTouchIcon.java
+++ b/src/com/android/browser/DownloadTouchIcon.java
@@ -101,7 +101,7 @@
     @Override
     public Void doInBackground(String... values) {
         if (mContentResolver != null) {
-            mCursor = BrowserBookmarksAdapter.queryBookmarksForUrl(mContentResolver,
+            mCursor = Bookmarks.queryBookmarksForUrl(mContentResolver,
                     mOriginalUrl, mUrl, true);
         }
 
diff --git a/src/com/android/browser/Tab.java b/src/com/android/browser/Tab.java
index 1d9482b..b45b8cb 100644
--- a/src/com/android/browser/Tab.java
+++ b/src/com/android/browser/Tab.java
@@ -488,7 +488,7 @@
 
             // update the bookmark database for favicon
             if (favicon != null) {
-                BrowserBookmarksAdapter.updateBookmarkFavicon(mActivity
+                Bookmarks.updateBookmarkFavicon(mActivity
                         .getContentResolver(), null, url, favicon);
             }
 
@@ -1029,7 +1029,7 @@
         @Override
         public void onReceivedIcon(WebView view, Bitmap icon) {
             if (icon != null) {
-                BrowserBookmarksAdapter.updateBookmarkFavicon(mActivity
+                Bookmarks.updateBookmarkFavicon(mActivity
                         .getContentResolver(), view.getOriginalUrl(), view
                         .getUrl(), icon);
             }
diff --git a/src/com/android/browser/provider/BrowserContract.java b/src/com/android/browser/provider/BrowserContract.java
new file mode 100644
index 0000000..1c31c85
--- /dev/null
+++ b/src/com/android/browser/provider/BrowserContract.java
@@ -0,0 +1,367 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.browser.provider;
+
+import android.accounts.Account;
+import android.content.ContentProviderClient;
+import android.content.ContentProviderOperation;
+import android.content.ContentResolver;
+import android.content.ContentUris;
+import android.graphics.BitmapFactory;
+import android.net.Uri;
+import android.os.RemoteException;
+import android.provider.SyncStateContract;
+import android.util.Pair;
+
+public class BrowserContract {
+    /** The authority for the browser provider */
+    public static final String AUTHORITY = "com.android.browser";
+
+    /** A content:// style uri to the authority for the browser provider */
+    public static final Uri AUTHORITY_URI = Uri.parse("content://" + AUTHORITY);
+
+    /**
+     * An optional insert, update or delete URI parameter that allows the caller
+     * to specify that it is a sync adapter. The default value is false. If true
+     * the dirty flag is not automatically set and the "syncToNetwork" parameter
+     * is set to false when calling
+     * {@link ContentResolver#notifyChange(android.net.Uri, android.database.ContentObserver, boolean)}.
+     */
+    public static final String CALLER_IS_SYNCADAPTER = "caller_is_syncadapter";
+
+    /**
+     * Generic columns for use by sync adapters. The specific functions of
+     * these columns are private to the sync adapter. Other clients of the API
+     * should not attempt to either read or write these columns.
+     */
+    interface BaseSyncColumns {
+        /** Generic column for use by sync adapters. */
+        public static final String SYNC1 = "sync1";
+        /** Generic column for use by sync adapters. */
+        public static final String SYNC2 = "sync2";
+        /** Generic column for use by sync adapters. */
+        public static final String SYNC3 = "sync3";
+        /** Generic column for use by sync adapters. */
+        public static final String SYNC4 = "sync4";
+        /** Generic column for use by sync adapters. */
+        public static final String SYNC5 = "sync5";
+    }
+
+    /**
+     * Columns that appear when each row of a table belongs to a specific
+     * account, including sync information that an account may need.
+     */
+    interface SyncColumns extends BaseSyncColumns {
+        /**
+         * The name of the account instance to which this row belongs, which when paired with
+         * {@link #ACCOUNT_TYPE} identifies a specific account.
+         * <P>Type: TEXT</P>
+         */
+        public static final String ACCOUNT_NAME = "account_name";
+
+        /**
+         * The type of account to which this row belongs, which when paired with
+         * {@link #ACCOUNT_NAME} identifies a specific account.
+         * <P>Type: TEXT</P>
+         */
+        public static final String ACCOUNT_TYPE = "account_type";
+
+        /**
+         * String that uniquely identifies this row to its source account.
+         * <P>Type: TEXT</P>
+         */
+        public static final String SOURCE_ID = "sourceid";
+
+        /**
+         * Version number that is updated whenever this row or its related data
+         * changes.
+         * <P>Type: INTEGER</P>
+         */
+        public static final String VERSION = "version";
+
+        /**
+         * Flag indicating that {@link #VERSION} has changed, and this row needs
+         * to be synchronized by its owning account.
+         * <P>Type: INTEGER (boolean)</P>
+         */
+        public static final String DIRTY = "dirty";
+    }
+
+    interface BookmarkColumns {
+        /**
+         * The unique ID for a row.
+         * <P>Type: INTEGER (long)</P>
+         */
+        public static final String _ID = "_id";
+
+        /**
+         * The URL of the bookmark.
+         * <P>Type: TEXT (URL)</P>
+         */
+        public static final String URL = "url";
+
+        /**
+         * The user visible title of the bookmark.
+         * <P>Type: TEXT</P>
+         */
+        public static final String TITLE = "title";
+
+        /**
+         * The favicon of the bookmark, may be NULL.
+         * Must decode via {@link BitmapFactory#decodeByteArray}.
+         * <p>Type: BLOB (image)</p>
+         */
+        public static final String FAVICON = "favicon";
+
+        /**
+         * A thumbnail of the page,may be NULL.
+         * Must decode via {@link BitmapFactory#decodeByteArray}.
+         * <p>Type: BLOB (image)</p>
+         */
+        public static final String THUMBNAIL = "thumbnail";
+
+        /**
+         * The touch icon for the web page, may be NULL.
+         * Must decode via {@link BitmapFactory#decodeByteArray}.
+         * <p>Type: BLOB (image)</p>
+         * @hide
+         */
+        public static final String TOUCH_ICON = "touch_icon";
+
+        /**
+         * @hide
+         */
+        public static final String USER_ENTERED = "user_entered";
+    }
+
+    /**
+     * The bookmarks table, which holds the user's browser bookmarks.
+     */
+    public static final class Bookmarks implements BookmarkColumns, SyncColumns {
+        /**
+         * This utility class cannot be instantiated.
+         */
+        private Bookmarks() {}
+
+        /**
+         * The content:// style URI for this table
+         */
+        public static final Uri CONTENT_URI = Uri.withAppendedPath(AUTHORITY_URI, "bookmarks");
+
+        /**
+         * The content:// style URI for the default folder
+         */
+        public static final Uri CONTENT_URI_DEFAULT_FOLDER =
+                Uri.withAppendedPath(CONTENT_URI, "folder");
+
+        /**
+         * Builds a URI that points to a specific folder.
+         * @param folderId the ID of the folder to point to
+         */
+        public static final Uri buildFolderUri(long folderId) {
+            return ContentUris.withAppendedId(CONTENT_URI_DEFAULT_FOLDER, folderId);
+        }
+
+        /**
+         * The MIME type of {@link #CONTENT_URI} providing a directory of bookmarks.
+         */
+        public static final String CONTENT_TYPE = "vnd.android.cursor.dir/bookmark";
+
+        /**
+         * The MIME type of a {@link #CONTENT_URI} of a single bookmark.
+         */
+        public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/bookmark";
+
+        /**
+         * Query parameter to use if you want to see deleted bookmarks that are still
+         * around on the device and haven't been synced yet.
+         * @see #IS_DELETED
+         */
+        public static final String QUERY_PARAMETER_SHOW_DELETED = "show_deleted";
+
+        /**
+         * Flag indicating if an item is a folder or bookmark. Non-zero values indicate
+         * a folder and zero indicates a bookmark.
+         * <P>Type: INTEGER (boolean)</P>
+         */
+        public static final String IS_FOLDER = "folder";
+
+        /**
+         * The ID of the parent folder. ID 0 is the root folder.
+         * <P>Type: INTEGER (reference to item in the same table)</P>
+         */
+        public static final String PARENT = "parent";
+
+        /**
+         * The position of the bookmark in relation to it's siblings that share the same
+         * {@link #PARENT}. May be negative.
+         * <P>Type: INTEGER</P>
+         */
+        public static final String POSITION = "position";
+
+        /**
+         * The item that the bookmark should be inserted after.
+         * May be negative.
+         * <P>Type: INTEGER</P>
+         */
+        public static final String INSERT_AFTER = "insert_after";
+
+        /**
+         * A flag to indicate if an item has been deleted. Queries will not return deleted
+         * entries unless you add the {@link #QUERY_PARAMETER_SHOW_DELETED} query paramter
+         * to the URI when performing your query.
+         * <p>Type: INTEGER (non-zero if the item has been deleted, zero if it hasn't)
+         * @see #QUERY_PARAMETER_SHOW_DELETED
+         */
+        public static final String IS_DELETED = "deleted";
+    }
+
+    /**
+     * The history table, which holds the browsing history.
+     */
+    public static final class History implements BookmarkColumns {
+        /**
+         * This utility class cannot be instantiated.
+         */
+        private History() {}
+
+        /**
+         * The content:// style URI for this table
+         */
+        public static final Uri CONTENT_URI = Uri.withAppendedPath(AUTHORITY_URI, "history");
+
+        /**
+         * The MIME type of {@link #CONTENT_URI} providing a directory of browser history items.
+         */
+        public static final String CONTENT_TYPE = "vnd.android.cursor.dir/browser-history";
+
+        /**
+         * The MIME type of a {@link #CONTENT_URI} of a single browser history item.
+         */
+        public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/browser-history";
+
+        /**
+         * The date the item was last visited, in milliseconds since the epoch.
+         * <p>Type: INTEGER (date in milliseconds since January 1, 1970)</p>
+         */
+        public static final String DATE_LAST_VISITED = "date";
+
+        /**
+         * The date the item created, in milliseconds since the epoch.
+         * <p>Type: NUMBER (date in milliseconds since January 1, 1970)</p>
+         */
+        public static final String DATE_CREATED = "created";
+
+        /**
+         * The number of times the item has been visited.
+         * <p>Type: INTEGER</p>
+         */
+        public static final String VISITS = "visits";
+    }
+
+    /**
+     * The search history table.
+     * @hide
+     */
+    public static final class Searches {
+        private Searches() {}
+
+        /**
+         * The content:// style URI for this table
+         */
+        public static final Uri CONTENT_URI = Uri.withAppendedPath(AUTHORITY_URI, "searches");
+
+        /**
+         * The MIME type of {@link #CONTENT_URI} providing a directory of browser search items.
+         */
+        public static final String CONTENT_TYPE = "vnd.android.cursor.dir/searches";
+
+        /**
+         * The MIME type of a {@link #CONTENT_URI} of a single browser search item.
+         */
+        public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/searches";
+
+        /**
+         * The unique ID for a row.
+         * <P>Type: INTEGER (long)</P>
+         */
+        public static final String _ID = "_id";
+
+        /**
+         * The user entered search term.
+         */
+        public static final String SEARCH = "search";
+
+        /**
+         * The date the search was performed, in milliseconds since the epoch.
+         * <p>Type: NUMBER (date in milliseconds since January 1, 1970)</p>
+         */
+        public static final String DATE = "date";
+    }
+
+    /**
+     * A table provided for sync adapters to use for storing private sync state data.
+     *
+     * @see SyncStateContract
+     */
+    public static final class SyncState implements SyncStateContract.Columns {
+        /**
+         * This utility class cannot be instantiated
+         */
+        private SyncState() {}
+
+        public static final String CONTENT_DIRECTORY =
+                SyncStateContract.Constants.CONTENT_DIRECTORY;
+
+        /**
+         * The content:// style URI for this table
+         */
+        public static final Uri CONTENT_URI =
+                Uri.withAppendedPath(AUTHORITY_URI, CONTENT_DIRECTORY);
+
+        /**
+         * @see android.provider.SyncStateContract.Helpers#get
+         */
+        public static byte[] get(ContentProviderClient provider, Account account)
+                throws RemoteException {
+            return SyncStateContract.Helpers.get(provider, CONTENT_URI, account);
+        }
+
+        /**
+         * @see android.provider.SyncStateContract.Helpers#get
+         */
+        public static Pair<Uri, byte[]> getWithUri(ContentProviderClient provider, Account account)
+                throws RemoteException {
+            return SyncStateContract.Helpers.getWithUri(provider, CONTENT_URI, account);
+        }
+
+        /**
+         * @see android.provider.SyncStateContract.Helpers#set
+         */
+        public static void set(ContentProviderClient provider, Account account, byte[] data)
+                throws RemoteException {
+            SyncStateContract.Helpers.set(provider, CONTENT_URI, account, data);
+        }
+
+        /**
+         * @see android.provider.SyncStateContract.Helpers#newSetOperation
+         */
+        public static ContentProviderOperation newSetOperation(Account account, byte[] data) {
+            return SyncStateContract.Helpers.newSetOperation(CONTENT_URI, account, data);
+        }
+    }
+}
diff --git a/src/com/android/browser/provider/BrowserProvider2.java b/src/com/android/browser/provider/BrowserProvider2.java
new file mode 100644
index 0000000..8392404
--- /dev/null
+++ b/src/com/android/browser/provider/BrowserProvider2.java
@@ -0,0 +1,725 @@
+/*
+ * Copyright (C) 2010 he Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.browser.provider;
+
+import com.android.browser.R;
+import com.android.browser.provider.BrowserContract.Bookmarks;
+import com.android.browser.provider.BrowserContract.History;
+import com.android.browser.provider.BrowserContract.Searches;
+import com.android.browser.provider.BrowserContract.SyncState;
+import com.android.internal.content.SyncStateContentProviderHelper;
+
+import android.content.ContentResolver;
+import android.content.ContentUris;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.UriMatcher;
+import android.database.Cursor;
+import android.database.DatabaseUtils;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+import android.database.sqlite.SQLiteQueryBuilder;
+import android.net.Uri;
+import android.provider.ContactsContract.RawContacts;
+import android.provider.SyncStateContract;
+import android.text.TextUtils;
+
+import java.util.HashMap;
+
+public class BrowserProvider2 extends SQLiteContentProvider {
+
+    static final Uri LEGACY_BROWSER_AUTHORITY_URI = Uri.parse("browser");
+
+    static final String TABLE_BOOKMARKS = "bookmarks";
+    static final String TABLE_HISTORY = "history";
+    static final String TABLE_SEARCHES = "searches";
+    static final String TABLE_SYNC_STATE = "syncstate";
+
+    static final String HISTORY_JOIN_BOOKMARKS =
+            "history LEFT OUTER JOIN bookmarks ON (history.url = bookmarks.url)";
+
+    static final int BOOKMARKS = 1000;
+    static final int BOOKMARKS_ID = 1001;
+    static final int BOOKMARKS_FOLDER = 1002;
+    static final int BOOKMARKS_FOLDER_ID = 1003;
+
+    static final int HISTORY = 2000;
+    static final int HISTORY_ID = 2001;
+
+    static final int SEARCHES = 3000;
+    static final int SEARCHES_ID = 3001;
+
+    static final int SYNCSTATE = 4000;
+    static final int SYNCSTATE_ID = 4001;
+
+    static final long FIXED_ID_BOOKMARKS = 1;
+    static final long FIXED_ID_BOOKMARKS_BAR = 2;
+    static final long FIXED_ID_OTHER_BOOKMARKS = 3;
+
+    static final String DEFAULT_BOOKMARKS_SORT_ORDER = "position ASC, _id ASC";
+    
+    static final UriMatcher URI_MATCHER = new UriMatcher(UriMatcher.NO_MATCH);
+
+    static final HashMap<String, String> BOOKMARKS_PROJECTION_MAP = new HashMap<String, String>();
+    static final HashMap<String, String> OTHER_BOOKMARKS_PROJECTION_MAP = new HashMap<String, String>();
+    static final HashMap<String, String> HISTORY_PROJECTION_MAP = new HashMap<String, String>();
+    static final HashMap<String, String> SEARCHES_PROJECTION_MAP = new HashMap<String, String>();
+    static final HashMap<String, String> SYNC_STATE_PROJECTION_MAP = new HashMap<String, String>();
+
+    static {
+        final UriMatcher matcher = URI_MATCHER;
+        matcher.addURI(BrowserContract.AUTHORITY, "bookmarks", BOOKMARKS);
+        matcher.addURI(BrowserContract.AUTHORITY, "bookmarks/#", BOOKMARKS_ID);
+        matcher.addURI(BrowserContract.AUTHORITY, "bookmarks/folder", BOOKMARKS_FOLDER);
+        matcher.addURI(BrowserContract.AUTHORITY, "bookmarks/folder/#", BOOKMARKS_FOLDER_ID);
+        matcher.addURI(BrowserContract.AUTHORITY, "history", HISTORY);
+        matcher.addURI(BrowserContract.AUTHORITY, "history/#", HISTORY_ID);
+        matcher.addURI(BrowserContract.AUTHORITY, "searches", SEARCHES);
+        matcher.addURI(BrowserContract.AUTHORITY, "searches/#", SEARCHES_ID);
+        matcher.addURI(BrowserContract.AUTHORITY, "syncstate", SYNCSTATE);
+        matcher.addURI(BrowserContract.AUTHORITY, "syncstate/#", SYNCSTATE_ID);
+
+        // Common BookmarkColumns
+        HashMap<String, String> bookmarksColumns = new HashMap();
+        bookmarksColumns.put(Bookmarks.TITLE, Bookmarks.TITLE);
+        bookmarksColumns.put(Bookmarks.URL, Bookmarks.URL);
+        bookmarksColumns.put(Bookmarks.FAVICON, Bookmarks.FAVICON);
+        bookmarksColumns.put(Bookmarks.THUMBNAIL, Bookmarks.THUMBNAIL);
+        bookmarksColumns.put(Bookmarks.TOUCH_ICON, Bookmarks.TOUCH_ICON);
+        bookmarksColumns.put(Bookmarks.USER_ENTERED, Bookmarks.USER_ENTERED);
+
+        // Bookmarks
+        HashMap<String, String> map = BOOKMARKS_PROJECTION_MAP;
+        map.putAll(bookmarksColumns);
+        map.put(Bookmarks._ID, TABLE_BOOKMARKS + "._id AS _id");
+        map.put(Bookmarks.IS_FOLDER, Bookmarks.IS_FOLDER);
+        map.put(Bookmarks.PARENT, Bookmarks.PARENT);
+        map.put(Bookmarks.POSITION, Bookmarks.POSITION);
+        map.put(Bookmarks.IS_DELETED, Bookmarks.IS_DELETED);
+        map.put(Bookmarks.ACCOUNT_NAME, Bookmarks.ACCOUNT_NAME);
+        map.put(Bookmarks.ACCOUNT_TYPE, Bookmarks.ACCOUNT_TYPE);
+        map.put(Bookmarks.SOURCE_ID, Bookmarks.SOURCE_ID);
+        map.put(Bookmarks.VERSION, Bookmarks.VERSION);
+        map.put(Bookmarks.DIRTY, Bookmarks.DIRTY);
+        map.put(Bookmarks.SYNC1, Bookmarks.SYNC1);
+        map.put(Bookmarks.SYNC2, Bookmarks.SYNC2);
+        map.put(Bookmarks.SYNC3, Bookmarks.SYNC3);
+        map.put(Bookmarks.SYNC4, Bookmarks.SYNC4);
+        map.put(Bookmarks.SYNC5, Bookmarks.SYNC5);
+
+        // Other bookmarks
+        OTHER_BOOKMARKS_PROJECTION_MAP.putAll(BOOKMARKS_PROJECTION_MAP);
+        OTHER_BOOKMARKS_PROJECTION_MAP.put(Bookmarks.POSITION,
+                Long.toString(Long.MAX_VALUE) + " AS " + Bookmarks.POSITION);
+
+        // History
+        map = HISTORY_PROJECTION_MAP;
+        map.putAll(bookmarksColumns);
+        map.put(History._ID, TABLE_HISTORY + "._id AS _id");
+        map.put(History.DATE_CREATED, History.DATE_CREATED);
+        map.put(History.DATE_LAST_VISITED, History.DATE_LAST_VISITED);
+        map.put(History.VISITS, History.VISITS);
+
+        // Sync state
+        map = SYNC_STATE_PROJECTION_MAP;
+        map.put(SyncState._ID, SyncState._ID);
+        map.put(SyncState.ACCOUNT_NAME, SyncState.ACCOUNT_NAME);
+        map.put(SyncState.ACCOUNT_TYPE, SyncState.ACCOUNT_TYPE);
+        map.put(SyncState.DATA, SyncState.DATA);
+    }
+
+    DatabaseHelper mOpenHelper;
+    SyncStateContentProviderHelper mSyncHelper = new SyncStateContentProviderHelper();
+
+    final class DatabaseHelper extends SQLiteOpenHelper {
+        static final String DATABASE_NAME = "browser2.db";
+        static final int DATABASE_VERSION = 10;
+        public DatabaseHelper(Context context) {
+            super(context, DATABASE_NAME, null, DATABASE_VERSION);
+        }
+
+        @Override
+        public void onCreate(SQLiteDatabase db) {
+            db.execSQL("CREATE TABLE " + TABLE_BOOKMARKS + "(" +
+                    Bookmarks._ID + " INTEGER PRIMARY KEY AUTOINCREMENT," +
+                    Bookmarks.TITLE + " TEXT," +
+                    Bookmarks.URL + " TEXT," +
+                    Bookmarks.FAVICON + " BLOB," +
+                    Bookmarks.THUMBNAIL + " BLOB," +
+                    Bookmarks.TOUCH_ICON + " BLOB," +
+                    Bookmarks.USER_ENTERED + " INTEGER," +
+                    Bookmarks.IS_FOLDER + " INTEGER NOT NULL DEFAULT 0," +
+                    Bookmarks.PARENT + " INTEGER NOT NULL DEFAULT 0," +
+                    Bookmarks.POSITION + " INTEGER NOT NULL," +
+                    Bookmarks.INSERT_AFTER + " INTEGER," +
+                    Bookmarks.IS_DELETED + " INTEGER NOT NULL DEFAULT 0," +
+                    Bookmarks.ACCOUNT_NAME + " TEXT," +
+                    Bookmarks.ACCOUNT_TYPE + " TEXT," +
+                    Bookmarks.SOURCE_ID + " TEXT," +
+                    Bookmarks.VERSION + " INTEGER NOT NULL DEFAULT 1," +
+                    Bookmarks.DIRTY + " INTEGER NOT NULL DEFAULT 0," +
+                    Bookmarks.SYNC1 + " TEXT," +
+                    Bookmarks.SYNC2 + " TEXT," +
+                    Bookmarks.SYNC3 + " TEXT," +
+                    Bookmarks.SYNC4 + " TEXT," +
+                    Bookmarks.SYNC5 + " TEXT" +
+                    ");");
+
+            // TODO indices
+
+            createDefaultBookmarks(db);
+
+            db.execSQL("CREATE TABLE " + TABLE_HISTORY + "(" +
+                    History._ID + " INTEGER PRIMARY KEY AUTOINCREMENT," +
+                    History.URL + " TEXT NOT NULL," +
+                    History.DATE_CREATED + " INTEGER," +
+                    History.DATE_LAST_VISITED + " INTEGER," +
+                    History.VISITS + " INTEGER NOT NULL DEFAULT 0" +
+                    ");");
+
+            db.execSQL("CREATE TABLE " + TABLE_SEARCHES + " (" +
+                    Searches._ID + " INTEGER PRIMARY KEY AUTOINCREMENT," +
+                    Searches.SEARCH + " TEXT," +
+                    Searches.DATE + " LONG" +
+                    ");");
+
+            mSyncHelper.createDatabase(db);
+        }
+
+        @Override
+        public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+            // TODO write upgrade logic
+            db.execSQL("DROP TABLE IF EXISTS " + TABLE_BOOKMARKS);
+            db.execSQL("DROP TABLE IF EXISTS " + TABLE_HISTORY);
+            db.execSQL("DROP TABLE IF EXISTS " + TABLE_SEARCHES);
+            onCreate(db);
+        }
+
+        @Override
+        public void onOpen(SQLiteDatabase db) {
+            mSyncHelper.onDatabaseOpened(db);
+        }
+        
+        private void createDefaultBookmarks(SQLiteDatabase db) {
+            ContentValues values = new ContentValues();
+            // TODO figure out how to deal with localization for the defaults
+            // TODO fill in the server unique tags for the sync adapter
+
+            // Bookmarks folder
+            values.put(Bookmarks._ID, FIXED_ID_BOOKMARKS);
+            values.put(Bookmarks.TITLE, "Bookmarks");
+            values.put(Bookmarks.PARENT, 0);
+            values.put(Bookmarks.POSITION, 0);
+            values.put(Bookmarks.IS_FOLDER, true);
+            values.put(Bookmarks.DIRTY, true);
+            long bookmarksId = db.insertOrThrow(TABLE_BOOKMARKS, null, values);
+
+            // Bookmarks Bar folder
+            values.clear();
+            values.put(Bookmarks._ID, FIXED_ID_BOOKMARKS_BAR);
+            values.put(Bookmarks.TITLE, "Bookmarks Bar");
+            values.put(Bookmarks.PARENT, bookmarksId);
+            values.put(Bookmarks.POSITION, 0);
+            values.put(Bookmarks.IS_FOLDER, true);
+            values.put(Bookmarks.DIRTY, true);
+            db.insertOrThrow(TABLE_BOOKMARKS, null, values);
+
+            // Other Bookmarks folder
+            values.clear();
+            values.put(Bookmarks._ID, FIXED_ID_OTHER_BOOKMARKS);
+            values.put(Bookmarks.TITLE, "Other Bookmarks");
+            values.put(Bookmarks.PARENT, bookmarksId);
+            values.put(Bookmarks.POSITION, 1000);
+            values.put(Bookmarks.IS_FOLDER, true);
+            values.put(Bookmarks.DIRTY, true);
+            db.insertOrThrow(TABLE_BOOKMARKS, null, values);
+            
+            addDefaultBookmarks(db, FIXED_ID_BOOKMARKS_BAR);
+
+            // TODO remove this testing code
+            db.execSQL("INSERT INTO bookmarks (" +
+                    Bookmarks.TITLE + ", " +
+                    Bookmarks.URL + ", " +
+                    Bookmarks.IS_FOLDER + "," +
+                    Bookmarks.PARENT + "," +
+                    Bookmarks.POSITION +
+                ") VALUES (" +
+                    "'Google Reader', " +
+                    "'http://reader.google.com', " +
+                    "0," +
+                    Long.toString(FIXED_ID_OTHER_BOOKMARKS) + "," +
+                    0 +
+                    ");");
+        }
+
+        private void addDefaultBookmarks(SQLiteDatabase db, long parentId) {
+            final CharSequence[] bookmarks = getContext().getResources().getTextArray(
+                    R.array.bookmarks);
+            int size = bookmarks.length;
+            try {
+                for (int i = 0; i < size; i = i + 2) {
+                    CharSequence bookmarkDestination = replaceSystemPropertyInString(getContext(),
+                            bookmarks[i + 1]);
+                    db.execSQL("INSERT INTO bookmarks (" +
+                            Bookmarks.TITLE + ", " +
+                            Bookmarks.URL + ", " +
+                            Bookmarks.IS_FOLDER + "," +
+                            Bookmarks.PARENT + "," +
+                            Bookmarks.POSITION +
+                        ") VALUES (" +
+                            "'" + bookmarks[i] + "', " +
+                            "'" + bookmarkDestination + "', " +
+                            "0," +
+                            Long.toString(parentId) + "," +
+                            Integer.toString(i) +
+                            ");");
+                }
+            } catch (ArrayIndexOutOfBoundsException e) {
+            }
+        }
+
+        // XXX: This is a major hack to remove our dependency on gsf constants and
+        // its content provider. http://b/issue?id=2425179
+        private String getClientId(ContentResolver cr) {
+            String ret = "android-google";
+            Cursor c = null;
+            try {
+                c = cr.query(Uri.parse("content://com.google.settings/partner"),
+                        new String[] { "value" }, "name='client_id'", null, null);
+                if (c != null && c.moveToNext()) {
+                    ret = c.getString(0);
+                }
+            } catch (RuntimeException ex) {
+                // fall through to return the default
+            } finally {
+                if (c != null) {
+                    c.close();
+                }
+            }
+            return ret;
+        }
+
+        private CharSequence replaceSystemPropertyInString(Context context, CharSequence srcString) {
+            StringBuffer sb = new StringBuffer();
+            int lastCharLoc = 0;
+
+            final String client_id = getClientId(context.getContentResolver());
+
+            for (int i = 0; i < srcString.length(); ++i) {
+                char c = srcString.charAt(i);
+                if (c == '{') {
+                    sb.append(srcString.subSequence(lastCharLoc, i));
+                    lastCharLoc = i;
+              inner:
+                    for (int j = i; j < srcString.length(); ++j) {
+                        char k = srcString.charAt(j);
+                        if (k == '}') {
+                            String propertyKeyValue = srcString.subSequence(i + 1, j).toString();
+                            if (propertyKeyValue.equals("CLIENT_ID")) {
+                                sb.append(client_id);
+                            } else {
+                                sb.append("unknown");
+                            }
+                            lastCharLoc = j + 1;
+                            i = j;
+                            break inner;
+                        }
+                    }
+                }
+            }
+            if (srcString.length() - lastCharLoc > 0) {
+                // Put on the tail, if there is one
+                sb.append(srcString.subSequence(lastCharLoc, srcString.length()));
+            }
+            return sb;
+        }
+    }
+
+    @Override
+    public SQLiteOpenHelper getDatabaseHelper(Context context) {
+        synchronized (this) {
+            if (mOpenHelper == null) {
+                mOpenHelper = new DatabaseHelper(context);
+            }
+            return mOpenHelper;
+        }
+    }
+
+    @Override
+    public boolean isCallerSyncAdapter(Uri uri) {
+        return uri.getBooleanQueryParameter(BrowserContract.CALLER_IS_SYNCADAPTER, false);
+    }
+
+    @Override
+    public void notifyChange(boolean callerIsSyncAdapter) {
+        ContentResolver resolver = getContext().getContentResolver();
+        resolver.notifyChange(BrowserContract.AUTHORITY_URI, null, !callerIsSyncAdapter);
+        resolver.notifyChange(LEGACY_BROWSER_AUTHORITY_URI, null, !callerIsSyncAdapter);
+    }
+
+    @Override
+    public String getType(Uri uri) {
+        final int match = URI_MATCHER.match(uri);
+        switch (match) {
+            case BOOKMARKS:
+                return Bookmarks.CONTENT_TYPE;
+            case BOOKMARKS_ID:
+                return Bookmarks.CONTENT_ITEM_TYPE;
+            case HISTORY:
+                return History.CONTENT_TYPE;
+            case HISTORY_ID:
+                return History.CONTENT_ITEM_TYPE;
+            case SEARCHES:
+                return Searches.CONTENT_TYPE;
+            case SEARCHES_ID:
+                return Searches.CONTENT_ITEM_TYPE;
+//            case SUGGEST:
+//                return SearchManager.SUGGEST_MIME_TYPE;
+        }
+        return null;
+    }
+
+    @Override
+    public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
+            String sortOrder) {
+        SQLiteDatabase db = mOpenHelper.getReadableDatabase();
+        final int match = URI_MATCHER.match(uri);
+        SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
+        switch (match) {
+            case BOOKMARKS_FOLDER_ID:
+            case BOOKMARKS_ID:
+            case BOOKMARKS: {
+                // Only show deleted bookmarks if requested to do so
+                if (!uri.getBooleanQueryParameter(Bookmarks.QUERY_PARAMETER_SHOW_DELETED, false)) {
+                    selection = DatabaseUtils.concatenateWhere(
+                            Bookmarks.IS_DELETED + "=0", selection);
+                }
+
+                if (match == BOOKMARKS_ID) {
+                    // Tack on the ID of the specific bookmark requested
+                    selection = DatabaseUtils.concatenateWhere(
+                            TABLE_BOOKMARKS + "." + Bookmarks._ID + "=?", selection);
+                    selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
+                            new String[] { Long.toString(ContentUris.parseId(uri)) });
+                } else if (match == BOOKMARKS_FOLDER_ID) {
+                    // Tack on the ID of the specific folder requested
+                    selection = DatabaseUtils.concatenateWhere(
+                            TABLE_BOOKMARKS + "." + Bookmarks.PARENT + "=?", selection);
+                    selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
+                            new String[] { Long.toString(ContentUris.parseId(uri)) });
+                }
+
+                if (TextUtils.isEmpty(sortOrder)) {
+                    sortOrder = DEFAULT_BOOKMARKS_SORT_ORDER;
+                }
+                
+                qb.setProjectionMap(BOOKMARKS_PROJECTION_MAP);
+                qb.setTables(TABLE_BOOKMARKS);
+                break;
+            }
+
+            case BOOKMARKS_FOLDER: {
+                // Don't allow selections to be applied to the default folder
+                if (!TextUtils.isEmpty(selection) || selectionArgs != null) {
+                    throw new UnsupportedOperationException(
+                            "selections aren't supported on this URI");
+                }
+
+                qb.setTables(TABLE_BOOKMARKS);
+                qb.setProjectionMap(BOOKMARKS_PROJECTION_MAP);
+                String bookmarksBarQuery = qb.buildQuery(projection,
+                        Bookmarks.PARENT + "=?",
+                        null, null, null, null, null);
+
+                qb.setProjectionMap(OTHER_BOOKMARKS_PROJECTION_MAP);
+                String otherBookmarksQuery = qb.buildQuery(projection,
+                        Bookmarks._ID + "=?",
+                        null, null, null, null, null);
+
+                String query = qb.buildUnionQuery(
+                        new String[] { bookmarksBarQuery, otherBookmarksQuery },
+                        DEFAULT_BOOKMARKS_SORT_ORDER, null);
+
+                return db.rawQuery(query, new String[] {
+                        Long.toString(FIXED_ID_BOOKMARKS_BAR),
+                        Long.toString(FIXED_ID_OTHER_BOOKMARKS)});
+            }
+
+            case HISTORY_ID: {
+                selection = DatabaseUtils.concatenateWhere(
+                        TABLE_HISTORY + "._id=?", selection);
+                selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
+                        new String[] { Long.toString(ContentUris.parseId(uri)) });
+                // fall through
+            }
+            case HISTORY: {
+                qb.setProjectionMap(HISTORY_PROJECTION_MAP);
+                qb.setTables(HISTORY_JOIN_BOOKMARKS);
+                break;
+            }
+
+            case SYNCSTATE: {
+                return mSyncHelper.query(db, projection, selection, selectionArgs, sortOrder);
+            }
+
+            case SYNCSTATE_ID: {
+                selection = appendAccountToSelection(uri, selection);
+                String selectionWithId =
+                        (SyncStateContract.Columns._ID + "=" + ContentUris.parseId(uri) + " ")
+                        + (selection == null ? "" : " AND (" + selection + ")");
+                return mSyncHelper.query(db, projection, selectionWithId, selectionArgs, sortOrder);
+            }
+            
+            default: {
+                throw new UnsupportedOperationException("Unknown URL " + uri.toString());
+            }
+        }
+
+        Cursor cursor = qb.query(db, projection, selection, selectionArgs, null, null, sortOrder);
+        cursor.setNotificationUri(getContext().getContentResolver(), BrowserContract.AUTHORITY_URI);
+        return cursor;
+    }
+
+    @Override
+    public int deleteInTransaction(Uri uri, String selection, String[] selectionArgs,
+            boolean callerIsSyncAdapter) {
+        final int match = URI_MATCHER.match(uri);
+        final SQLiteDatabase db = mOpenHelper.getWritableDatabase();
+        switch (match) {
+            case BOOKMARKS_ID:
+            case BOOKMARKS: {
+                //TODO cascade deletes down from folders
+                if (!callerIsSyncAdapter) {
+                    // If the caller isn't a sync adapter just go through and update all the
+                    // bookmarks to have the deleted flag set.
+                    ContentValues values = new ContentValues();
+                    values.put(Bookmarks.IS_DELETED, 1);
+                    return updateInTransaction(uri, values, selection, selectionArgs,
+                            callerIsSyncAdapter);
+                } else {
+                    // Sync adapters are allowed to actually delete things
+                    if (match == BOOKMARKS_ID) {
+                        selection = DatabaseUtils.concatenateWhere(selection,
+                                TABLE_BOOKMARKS + "._id=?");
+                        selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
+                                new String[] { Long.toString(ContentUris.parseId(uri)) });
+                    }
+                    return db.delete(TABLE_BOOKMARKS, selection, selectionArgs);
+                }
+            }
+
+            case HISTORY_ID: {
+                selection = DatabaseUtils.concatenateWhere(selection, TABLE_HISTORY + "._id=?");
+                selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
+                        new String[] { Long.toString(ContentUris.parseId(uri)) });
+                // fall through
+            }
+            case HISTORY: {
+                return db.delete(TABLE_HISTORY, selection, selectionArgs);
+            }
+
+            case SEARCHES_ID: {
+                selection = DatabaseUtils.concatenateWhere(selection, TABLE_SEARCHES + "._id=?");
+                selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
+                        new String[] { Long.toString(ContentUris.parseId(uri)) });
+                // fall through
+            }
+            case SEARCHES: {
+                return db.delete(TABLE_SEARCHES, selection, selectionArgs);
+            }
+
+            case SYNCSTATE: {
+                return mSyncHelper.delete(db, selection, selectionArgs);
+            }
+            case SYNCSTATE_ID: {
+                String selectionWithId =
+                        (SyncStateContract.Columns._ID + "=" + ContentUris.parseId(uri) + " ")
+                        + (selection == null ? "" : " AND (" + selection + ")");
+                return mSyncHelper.delete(db, selectionWithId, selectionArgs);
+            }
+        }
+        throw new UnsupportedOperationException("Unknown update URI " + uri);
+    }
+
+    @Override
+    public Uri insertInTransaction(Uri uri, ContentValues values, boolean callerIsSyncAdapter) {
+        final int match = URI_MATCHER.match(uri);
+        final SQLiteDatabase db = mOpenHelper.getWritableDatabase();
+        long id = -1;
+        switch (match) {
+            case BOOKMARKS: {
+                // Mark rows dirty if they're not coming from a sync adapater
+                if (!callerIsSyncAdapter) {
+                    values.put(Bookmarks.DIRTY, 1);
+                }
+
+                // If no parent is set default to the "Bookmarks Bar" folder
+                if (!values.containsKey(Bookmarks.PARENT)) {
+                    values.put(Bookmarks.PARENT, FIXED_ID_BOOKMARKS_BAR);
+                }
+
+                // If no position is requested put the bookmark at the beginning of the list
+                if (!values.containsKey(Bookmarks.POSITION)) {
+                    values.put(Bookmarks.POSITION, Long.toString(Long.MIN_VALUE));
+                }
+
+                id = db.insertOrThrow(TABLE_BOOKMARKS, Bookmarks.DIRTY, values);
+                break;
+            }
+
+            case HISTORY: {
+                id = db.insertOrThrow(TABLE_HISTORY, History.VISITS, values);
+                break;
+            }
+
+            case SEARCHES: {
+                id = db.insertOrThrow(TABLE_SEARCHES, Searches.SEARCH, values);
+                break;
+            }
+
+            case SYNCSTATE: {
+                id = mSyncHelper.insert(mDb, values);
+                break;
+            }
+
+            default: {
+                throw new UnsupportedOperationException("Unknown insert URI " + uri);
+            }
+        }
+
+        if (id >= 0) {
+            return ContentUris.withAppendedId(uri, id);
+        } else {
+            return null;
+        }
+    }
+
+    @Override
+    public int updateInTransaction(Uri uri, ContentValues values, String selection,
+            String[] selectionArgs, boolean callerIsSyncAdapter) {
+        final int match = URI_MATCHER.match(uri);
+        final SQLiteDatabase db = mOpenHelper.getWritableDatabase();
+        switch (match) {
+            case BOOKMARKS_ID: {
+                // Mark the bookmark dirty if the caller isn't a sync adapter
+                if (!callerIsSyncAdapter) {
+                    values = new ContentValues(values);
+                    values.put(Bookmarks.DIRTY, 1);
+                }
+                selection = DatabaseUtils.concatenateWhere(selection,
+                        TABLE_BOOKMARKS + "._id=?");
+                selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
+                        new String[] { Long.toString(ContentUris.parseId(uri)) });
+                return db.update(TABLE_BOOKMARKS, values, selection, selectionArgs); 
+            }
+
+            case BOOKMARKS: {
+                if (!callerIsSyncAdapter) {
+                    values = new ContentValues(values);
+                    values.put(Bookmarks.DIRTY, 1);
+                }
+                return updateBookmarksInTransaction(values, selection, selectionArgs);
+            }
+
+            case HISTORY_ID: {
+                selection = DatabaseUtils.concatenateWhere(selection, TABLE_HISTORY + "._id=?");
+                selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
+                        new String[] { Long.toString(ContentUris.parseId(uri)) });
+                // fall through
+            }
+            case HISTORY: {
+                return db.update(TABLE_HISTORY, values, selection, selectionArgs);
+            }
+
+            case SEARCHES_ID: {
+                selection = DatabaseUtils.concatenateWhere(selection, TABLE_SEARCHES + "._id=?");
+                selectionArgs = DatabaseUtils.appendSelectionArgs(selectionArgs,
+                        new String[] { Long.toString(ContentUris.parseId(uri)) });
+                // fall through
+            }
+            case SEARCHES: {
+                return db.update(TABLE_SEARCHES, values, selection, selectionArgs);
+            }
+
+            case SYNCSTATE: {
+                return mSyncHelper.update(mDb, values,
+                        appendAccountToSelection(uri, selection), selectionArgs);
+            }
+
+            case SYNCSTATE_ID: {
+                selection = appendAccountToSelection(uri, selection);
+                String selectionWithId =
+                        (SyncStateContract.Columns._ID + "=" + ContentUris.parseId(uri) + " ")
+                        + (selection == null ? "" : " AND (" + selection + ")");
+                return mSyncHelper.update(mDb, values,
+                        selectionWithId, selectionArgs);
+            }
+        }
+        throw new UnsupportedOperationException("Unknown update URI " + uri);
+    }
+
+    /**
+     * Does a query to find the matching bookmarks and updates each one with the provided values.
+     */
+    private int updateBookmarksInTransaction(ContentValues values, String selection,
+            String[] selectionArgs) {
+        int count = 0;
+        final SQLiteDatabase db = mOpenHelper.getWritableDatabase();
+        Cursor cursor = query(Bookmarks.CONTENT_URI, new String[] { Bookmarks._ID },
+                selection, selectionArgs, null);
+        try {
+            String[] args = new String[1];
+            while (cursor.moveToNext()) {
+                args[0] = cursor.getString(0);
+                count += db.update(TABLE_BOOKMARKS, values, "_id=?", args);
+            }
+        } finally {
+            if (cursor != null) cursor.close();
+        }
+        return count;
+    }
+
+    private String appendAccountToSelection(Uri uri, String selection) {
+        final String accountName = uri.getQueryParameter(RawContacts.ACCOUNT_NAME);
+        final String accountType = uri.getQueryParameter(RawContacts.ACCOUNT_TYPE);
+
+        final boolean partialUri = TextUtils.isEmpty(accountName) ^ TextUtils.isEmpty(accountType);
+        if (partialUri) {
+            // Throw when either account is incomplete
+            throw new IllegalArgumentException(
+                    "Must specify both or neither of ACCOUNT_NAME and ACCOUNT_TYPE for " + uri);
+        }
+
+        // Accounts are valid by only checking one parameter, since we've
+        // already ruled out partial accounts.
+        final boolean validAccount = !TextUtils.isEmpty(accountName);
+        if (validAccount) {
+            StringBuilder selectionSb = new StringBuilder(RawContacts.ACCOUNT_NAME + "="
+                    + DatabaseUtils.sqlEscapeString(accountName) + " AND "
+                    + RawContacts.ACCOUNT_TYPE + "="
+                    + DatabaseUtils.sqlEscapeString(accountType));
+            if (!TextUtils.isEmpty(selection)) {
+                selectionSb.append(" AND (");
+                selectionSb.append(selection);
+                selectionSb.append(')');
+            }
+            return selectionSb.toString();
+        } else {
+            return selection;
+        }
+    }
+}
diff --git a/src/com/android/browser/provider/SQLiteContentProvider.java b/src/com/android/browser/provider/SQLiteContentProvider.java
new file mode 100644
index 0000000..a50894a
--- /dev/null
+++ b/src/com/android/browser/provider/SQLiteContentProvider.java
@@ -0,0 +1,276 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.browser.provider;
+
+import android.content.ContentProvider;
+import android.content.ContentProviderOperation;
+import android.content.ContentProviderResult;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.OperationApplicationException;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+import android.database.sqlite.SQLiteTransactionListener;
+import android.net.Uri;
+
+import java.util.ArrayList;
+
+/**
+ * General purpose {@link ContentProvider} base class that uses SQLiteDatabase for storage.
+ */
+public abstract class SQLiteContentProvider extends ContentProvider
+        implements SQLiteTransactionListener {
+
+    private static final String TAG = "SQLiteContentProvider";
+
+    private SQLiteOpenHelper mOpenHelper;
+    private volatile boolean mNotifyChange;
+    protected SQLiteDatabase mDb;
+
+    private final ThreadLocal<Boolean> mApplyingBatch = new ThreadLocal<Boolean>();
+    private static final int SLEEP_AFTER_YIELD_DELAY = 4000;
+
+    /**
+     * Maximum number of operations allowed in a batch between yield points.
+     */
+    private static final int MAX_OPERATIONS_PER_YIELD_POINT = 500;
+
+    @Override
+    public boolean onCreate() {
+        Context context = getContext();
+        mOpenHelper = getDatabaseHelper(context);
+        return true;
+    }
+
+    /**
+     * Returns a {@link SQLiteOpenHelper} that can open the database.
+     */
+    public abstract SQLiteOpenHelper getDatabaseHelper(Context context);
+
+    /**
+     * The equivalent of the {@link #insert} method, but invoked within a transaction.
+     */
+    public abstract Uri insertInTransaction(Uri uri, ContentValues values,
+            boolean callerIsSyncAdapter);
+
+    /**
+     * The equivalent of the {@link #update} method, but invoked within a transaction.
+     */
+    public abstract int updateInTransaction(Uri uri, ContentValues values, String selection,
+            String[] selectionArgs, boolean callerIsSyncAdapter);
+
+    /**
+     * The equivalent of the {@link #delete} method, but invoked within a transaction.
+     */
+    public abstract int deleteInTransaction(Uri uri, String selection, String[] selectionArgs,
+            boolean callerIsSyncAdapter);
+
+    /**
+     * Called when the provider needs to notify the system of a change.
+     * @param callerIsSyncAdapter true if the caller that caused the change was a sync adapter.
+     */
+    public abstract void notifyChange(boolean callerIsSyncAdapter);
+
+    public boolean isCallerSyncAdapter(Uri uri) {
+        return false;
+    }
+
+    public SQLiteOpenHelper getDatabaseHelper() {
+        return mOpenHelper;
+    }
+
+    private boolean applyingBatch() {
+        return mApplyingBatch.get() != null && mApplyingBatch.get();
+    }
+
+    @Override
+    public Uri insert(Uri uri, ContentValues values) {
+        Uri result = null;
+        boolean callerIsSyncAdapter = isCallerSyncAdapter(uri);
+        boolean applyingBatch = applyingBatch();
+        if (!applyingBatch) {
+            mDb = mOpenHelper.getWritableDatabase();
+            mDb.beginTransactionWithListener(this);
+            try {
+                result = insertInTransaction(uri, values, callerIsSyncAdapter);
+                if (result != null) {
+                    mNotifyChange = true;
+                }
+                mDb.setTransactionSuccessful();
+            } finally {
+                mDb.endTransaction();
+            }
+
+            onEndTransaction(callerIsSyncAdapter);
+        } else {
+            result = insertInTransaction(uri, values, callerIsSyncAdapter);
+            if (result != null) {
+                mNotifyChange = true;
+            }
+        }
+        return result;
+    }
+
+    @Override
+    public int bulkInsert(Uri uri, ContentValues[] values) {
+        int numValues = values.length;
+        boolean callerIsSyncAdapter = isCallerSyncAdapter(uri);
+        mDb = mOpenHelper.getWritableDatabase();
+        mDb.beginTransactionWithListener(this);
+        try {
+            for (int i = 0; i < numValues; i++) {
+                Uri result = insertInTransaction(uri, values[i], callerIsSyncAdapter);
+                if (result != null) {
+                    mNotifyChange = true;
+                }
+                mDb.yieldIfContendedSafely();
+            }
+            mDb.setTransactionSuccessful();
+        } finally {
+            mDb.endTransaction();
+        }
+
+        onEndTransaction(callerIsSyncAdapter);
+        return numValues;
+    }
+
+    @Override
+    public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
+        int count = 0;
+        boolean callerIsSyncAdapter = isCallerSyncAdapter(uri);
+        boolean applyingBatch = applyingBatch();
+        if (!applyingBatch) {
+            mDb = mOpenHelper.getWritableDatabase();
+            mDb.beginTransactionWithListener(this);
+            try {
+                count = updateInTransaction(uri, values, selection, selectionArgs,
+                        callerIsSyncAdapter);
+                if (count > 0) {
+                    mNotifyChange = true;
+                }
+                mDb.setTransactionSuccessful();
+            } finally {
+                mDb.endTransaction();
+            }
+
+            onEndTransaction(callerIsSyncAdapter);
+        } else {
+            count = updateInTransaction(uri, values, selection, selectionArgs, callerIsSyncAdapter);
+            if (count > 0) {
+                mNotifyChange = true;
+            }
+        }
+
+        return count;
+    }
+
+    @Override
+    public int delete(Uri uri, String selection, String[] selectionArgs) {
+        int count = 0;
+        boolean callerIsSyncAdapter = isCallerSyncAdapter(uri);
+        boolean applyingBatch = applyingBatch();
+        if (!applyingBatch) {
+            mDb = mOpenHelper.getWritableDatabase();
+            mDb.beginTransactionWithListener(this);
+            try {
+                count = deleteInTransaction(uri, selection, selectionArgs, callerIsSyncAdapter);
+                if (count > 0) {
+                    mNotifyChange = true;
+                }
+                mDb.setTransactionSuccessful();
+            } finally {
+                mDb.endTransaction();
+            }
+
+            onEndTransaction(callerIsSyncAdapter);
+        } else {
+            count = deleteInTransaction(uri, selection, selectionArgs, callerIsSyncAdapter);
+            if (count > 0) {
+                mNotifyChange = true;
+            }
+        }
+        return count;
+    }
+
+    @Override
+    public ContentProviderResult[] applyBatch(ArrayList<ContentProviderOperation> operations)
+            throws OperationApplicationException {
+        int ypCount = 0;
+        int opCount = 0;
+        boolean callerIsSyncAdapter = false;
+        mDb = mOpenHelper.getWritableDatabase();
+        mDb.beginTransactionWithListener(this);
+        try {
+            mApplyingBatch.set(true);
+            final int numOperations = operations.size();
+            final ContentProviderResult[] results = new ContentProviderResult[numOperations];
+            for (int i = 0; i < numOperations; i++) {
+                if (++opCount >= MAX_OPERATIONS_PER_YIELD_POINT) {
+                    throw new OperationApplicationException(
+                            "Too many content provider operations between yield points. "
+                                    + "The maximum number of operations per yield point is "
+                                    + MAX_OPERATIONS_PER_YIELD_POINT, ypCount);
+                }
+                final ContentProviderOperation operation = operations.get(i);
+                if (!callerIsSyncAdapter && isCallerSyncAdapter(operation.getUri())) {
+                    callerIsSyncAdapter = true;
+                }
+                if (i > 0 && operation.isYieldAllowed()) {
+                    opCount = 0;
+                    if (mDb.yieldIfContendedSafely(SLEEP_AFTER_YIELD_DELAY)) {
+                        ypCount++;
+                    }
+                }
+                results[i] = operation.apply(this, results, i);
+            }
+            mDb.setTransactionSuccessful();
+            return results;
+        } finally {
+            mApplyingBatch.set(false);
+            mDb.endTransaction();
+            onEndTransaction(callerIsSyncAdapter);
+        }
+    }
+
+    @Override
+    public void onBegin() {
+        onBeginTransaction();
+    }
+
+    @Override
+    public void onCommit() {
+        beforeTransactionCommit();
+    }
+
+    @Override
+    public void onRollback() {
+        // not used
+    }
+
+    protected void onBeginTransaction() {
+    }
+
+    protected void beforeTransactionCommit() {
+    }
+
+    protected void onEndTransaction(boolean callerIsSyncAdapter) {
+        if (mNotifyChange) {
+            mNotifyChange = false;
+            notifyChange(callerIsSyncAdapter);
+        }
+    }
+}