Refactor LauncherDelegate

chrome/browser/ui/ash/launcher/chrome_launcher_controller.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/ash/launcher/chrome_launcher_controller.h"
 
 #include <vector>
 
 #include "ash/ash_switches.h"
 #include "ash/launcher/launcher.h"
@@ skipping 959 matching lines @@
   launchers_.insert(launcher);
   launcher->shelf_widget()->shelf_layout_manager()->AddObserver(this);
 }
 
 void ChromeLauncherController::OnLauncherDestroyed(ash::Launcher* launcher) {
   launchers_.erase(launcher);
   // RemoveObserver is not called here, since by the time this method is called
   // Launcher is already in its destructor.
 }
 
+// TODO(simon.hong81): Remove LauncherItemDelegate interface from
+// ChromeLauncherController. LauncherItemDelegate should be derived by
+// LauncherItemController.
+ash::LauncherItemDelegate* ChromeLauncherController::GetLauncherItemDelegate(
+    const ash::LauncherItem& item) {
+  IDToItemControllerMap::iterator iter =
+      id_to_item_controller_map_.find(item.id);
+  return iter != id_to_item_controller_map_.end() ? this : NULL;
+}
+
 void ChromeLauncherController::LauncherItemAdded(int index) {
 }
 
 void ChromeLauncherController::LauncherItemRemoved(int index,
                                                    ash::LauncherID id) {
 }
 
 void ChromeLauncherController::LauncherItemMoved(int start_index,
                                                  int target_index) {
   ash::LauncherID id = model_->items()[target_index].id;
@@ skipping 659 matching lines @@
     browser_to_close.pop_back();
   }
 }
 
 void
 ChromeLauncherController::MoveItemWithoutPinnedStateChangeNotification(
     int source_index, int target_index) {
   base::AutoReset<bool> auto_reset(&ignore_persist_pinned_state_change_, true);
   model_->Move(source_index, target_index);
 }