Updates for the look of the bookmarks page.

Add new assets.

-tab_indicator.xml
State selector for the background of tabs in the CombinedHistoryActivity

-bookmark_thumnail.xml
Web page title is now above the thumb.  Removed the favicon.  Added a
shadow.

-tab_header.xml
Layout for the tabs in CombinedHistoryActivity

-tabs.xml
Change the height of the tabs.

-bookmarks.xml
Remove the title for the "switch" menu item, which gets set in Java,
depending on the current viewing mode.

-strings.xml
Remove the placeholder menu item text, add the actual text for
switching between modes.

-BrowserBookmarksAdapter
No longer set the favicon on top of the bookmark thumbs in grid mode.

-BrowserBookmarksPage
Implement onPrepareOptionsMenu, and set the title of a menu option,
depending on the current viewing state.

-CombinedHistoryActivity
Create a common function for setting up all the tabs.  Change the
look of the tabs to match the new design.
diff --git a/src/com/android/browser/BrowserBookmarksPage.java b/src/com/android/browser/BrowserBookmarksPage.java
index 428aa92..5abdbb3 100644
--- a/src/com/android/browser/BrowserBookmarksPage.java
+++ b/src/com/android/browser/BrowserBookmarksPage.java
@@ -344,6 +344,14 @@
     }
 
     @Override
+    public boolean onPrepareOptionsMenu(Menu menu) {
+        menu.findItem(R.id.switch_mode_menu_id).setTitle(
+                mGridMode ? R.string.switch_to_list
+                : R.string.switch_to_thumbnails);
+        return true;
+    }
+
+    @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
         case R.id.new_context_menu_id: