Refactor LauncherItemController and LauncherItemDelegate

ash/launcher/launcher_util.cc

 // Copyright (c) 2012 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 "ash/launcher/launcher_util.h"
 
 #include "ash/launcher/launcher_model.h"
-#include "ash/launcher/launcher_types.h"
 
 namespace ash {
 namespace launcher {
 
 int GetBrowserItemIndex(const LauncherModel& launcher_model) {
   for (size_t i = 0; i < launcher_model.items().size(); i++) {
     if (launcher_model.items()[i].type == ash::TYPE_BROWSER_SHORTCUT)
       return i;
   }
   return -1;
 }
 
+ash::LauncherID GetBrowserItemID(const LauncherModel& launcher_model) {
+  for (size_t i = 0; i < launcher_model.items().size(); i++) {
+    if (launcher_model.items()[i].type == ash::TYPE_BROWSER_SHORTCUT)
+      return launcher_model.items()[i].id;
+  }
+  return 0;
+}
+
+ash::LauncherID GetAppListItemID(const LauncherModel& launcher_model) {
+  for (size_t i = 0; i < launcher_model.items().size(); i++) {
+    if (launcher_model.items()[i].type == ash::TYPE_APP_LIST)
+      return launcher_model.items()[i].id;
+  }
+  return 0;
+}
+
 }  // namespace launcher
 }  // namespace ash