Initial pass at collapsable bookmarks

 Change bookmark view to show all bookmarks
 Group by account_name

Change-Id: I2c252c9f0e8d4df4271649dbe9bf3db336f921df
diff --git a/res/layout/bookmarks.xml b/res/layout/bookmarks.xml
index 81327e4..bcabc03 100644
--- a/res/layout/bookmarks.xml
+++ b/res/layout/bookmarks.xml
@@ -33,20 +33,14 @@
     <FrameLayout
         android:layout_width="match_parent"
         android:layout_height="match_parent">
-        <GridView
+        <com.android.browser.view.BookmarkExpandableGridView
             android:id="@+id/grid"
-            android:layout_width="wrap_content"
+            android:layout_width="match_parent"
             android:layout_height="match_parent"
             android:layout_gravity="center_horizontal"
-            android:horizontalSpacing="@dimen/combo_horizontalSpacing"
-            android:verticalSpacing="40dip"
-            android:scrollbarStyle="insideInset"
-            android:listSelector="@drawable/bookmark_thumb_selector"
-            android:drawSelectorOnTop="true"
-            android:focusable="true"
-            android:focusableInTouchMode="true"
-            android:numColumns="auto_fit"
-            android:stretchMode="spacingWidth" />
+            android:childDivider="@android:color/transparent"
+            android:divider="@android:color/transparent"
+            android:dividerHeight="0dp" />
         <ListView
             android:id="@+id/list"
             android:layout_width="match_parent"