更新bookmark书签

 Uri mUri = Uri.withAppendedPath(Browser.BOOKMARKS_URI, bookmark_id);

ContentValues bEditValues = new ContentValues();
bEditValues.put(Browser.BookmarkColumns.TITLE, "NEW_TITLE");
bEditValues.put(Browser.BookmarkColumns.URL, "NEW_URL");
getContentResolver().update(mUri, bEditValues, null, null);