Add support for pinning platform apps

chrome/browser/ui/views/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_VIEWS_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_H_
 #define CHROME_BROWSER_UI_VIEWS_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_H_
 #pragma once
 
 #include <list>
 #include <map>
@@ skipping 87 matching lines @@
       BrowserLauncherItemController* controller,
       const std::string& app_id,
       ash::LauncherItemStatus status);
 
   // Updates the running status of an item.
   void SetItemStatus(ash::LauncherID id, ash::LauncherItemStatus status);
 
   // Invoked when the underlying browser/app is closed.
   void LauncherItemClosed(ash::LauncherID id);
 
+  // Pins the specified id. Currently only supports platform apps.
+  void Pin(ash::LauncherID id);
+
   // Unpins the specified id, closing if not running.
   void Unpin(ash::LauncherID id);
 
   // Returns true if the item identified by |id| is pinned.
   bool IsPinned(ash::LauncherID id);
 
   // Pins/unpins the specified id.
   void TogglePinned(ash::LauncherID id);
 
   // Returns true if the specified item can be pinned or unpinned. Only apps can
@@ skipping 96 matching lines @@
   enum ItemType {
     TYPE_APP,
     TYPE_TABBED_BROWSER
   };
 
   // Used to identity an item on the launcher.
   struct Item {
     Item();
     ~Item();
 
-    bool is_pinned() const { return controller == NULL; }
-
     // Type of item.
     ItemType item_type;
 
     // ID of the app.
     std::string app_id;
 
     // The BrowserLauncherItemController this item came from. NULL if a
     // shortcut.
     BrowserLauncherItemController* controller;
   };
@@ skipping 59 matching lines @@
 
   content::NotificationRegistrar notification_registrar_;
 
   PrefChangeRegistrar pref_change_registrar_;
   aura::client::ActivationClient* activation_client_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeLauncherController);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_H_