Give platform apps control over launcher right-click context menu.

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

 // 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.
 
 #ifndef CHROME_BROWSER_UI_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_H_
 #define CHROME_BROWSER_UI_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_H_
 
 #include <list>
 #include <map>
 #include <string>
@@ skipping 145 matching lines @@
   // Returns true if the specified item is open.
   bool IsOpen(ash::LauncherID id);
 
   // Returns the launch type of app for the specified id.
   extensions::ExtensionPrefs::LaunchType GetLaunchType(ash::LauncherID id);
 
   // Returns the id of the app for the specified tab.
   std::string GetAppID(TabContents* tab);
 
   ash::LauncherID GetLauncherIDForAppID(const std::string& app_id);
+  std::string GetAppIDForLauncherID(ash::LauncherID id);
 
   // Sets the image for an app tab. This is intended to be invoked from the
   // AppIconLoader.
   void SetAppImage(const std::string& app_id, const gfx::ImageSkia& image);
 
   // Returns true if a pinned launcher item with given |app_id| could be found.
   bool IsAppPinned(const std::string& app_id);
 
   // Pins an app with |app_id| to launcher. If there is a running instance in
   // launcher, the running instance is pinned. If there is no running instance,
@@ skipping 174 matching lines @@
 
   PrefChangeRegistrar pref_change_registrar_;
 
   ProfileSyncService* observed_sync_service_;
   base::OneShotTimer<ChromeLauncherController> loading_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeLauncherController);
 };
 
 #endif  // CHROME_BROWSER_UI_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_H_