Add bookmark search feature to enhanced bookmark

chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkDelegate.java

Index: chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkDelegate.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkDelegate.java b/chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkDelegate.java
index 76856454c3541f5f3e4d683e29a46e58241aca79..fda2878df480146559ea5fe7e917cbbf0b79e844 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkDelegate.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkDelegate.java
@@ -4,8 +4,12 @@
 
 package org.chromium.chrome.browser.enhancedbookmarks;
 
+import android.support.annotation.Nullable;
 import android.support.v4.widget.DrawerLayout;
+import android.view.View;
 
+import org.chromium.chrome.browser.enhanced_bookmarks.EnhancedBookmarksModel;
+import org.chromium.chrome.browser.enhanced_bookmarks.LaunchLocation;
 import org.chromium.components.bookmarks.BookmarkId;
 
 import java.util.List;
@@ -27,6 +31,11 @@ interface EnhancedBookmarkDelegate {
         public void onBookmarkUIStateChange(String url);
     }
 
+    static final int STATE_LOADING = 0;
+    static final int STATE_ALL_BOOKMARKS = 1;
+    static final int STATE_FOLDER = 2;
+    static final int STATE_FILTER = 3;
+
     /**
      * Corresponds to "All Items" list item in the side drawer. Shows all bookmarks.
      */
@@ -40,6 +49,13 @@ interface EnhancedBookmarkDelegate {
     void openFolder(BookmarkId folder);
 
     /**
+     * Corresponds to any filter list item in the side drawer. Shows bookmarks under the
+     * filter.
+     * @param filter Filter string to search
+     */
+    void openFilter(String filter);
+
+    /**
      * Clear all selected items. After this call, {@link #isSelectionEnabled()} will return false.
      */
     void clearSelection();
@@ -67,6 +83,17 @@ interface EnhancedBookmarkDelegate {
     List<BookmarkId> getSelectedBookmarks();
 
     /**
+     * Sets list mode. If the mode is toggles,
+     * {@link EnhancedBookmarkUIObserver#onListModeChange(boolean)} will be called.
+     */
+    void setListModeEnabled(boolean isListModeEnabled);
+
+    /**
+     * @return True is list mode is enabled. False otherwise.
+     */
+    boolean isListModeEnabled();
+
+    /**
      * Notifies the current mode set event to the given observer. For example, if the current mode
      * is MODE_ALL_BOOKMARKS, it calls onAllBookmarksModeSet.
      */
@@ -96,6 +123,26 @@ interface EnhancedBookmarkDelegate {
     void openBookmark(BookmarkId bookmark, int launchLocation);
 
     /**
+     * Starts detail activity with shared element animation. On Lollipop and later devices, shows a
+     * shared image animation. On earlier devices, opens the activity using the standard Activity
+     * transition.
+     * @param bookmarkId The bookmark that the detail activity shows.
+     * @param view The view to share for activity transition animation. If null, no transition is
+     *            displayed.
+     */
+    void startDetailActivity(BookmarkId bookmarkId, @Nullable View view);
+
+    /**
+     * Shows the search UI.
+     */
+    void openSearchUI();
+
+    /**
+     * Dismisses the search UI.
+     */
+    void closeSearchUI();
+
+    /**
      * Closes the EnhancedBookmark Activity on Phone. Does nothing on tablet.
      */
     void finishActivityOnPhone();
@@ -117,7 +164,7 @@ interface EnhancedBookmarkDelegate {
 
     /**
      * @return Current UIState of Enhanced Bookmark main UI. If no mode is stored,
-     *         {@link UIState#STATE_LOADING} is returned.
+     *         {@link EnhancedBookmarkDelegate#STATE_LOADING} is returned.
      */
     int getCurrentState();
 }