Add option to install an ephemeral app to ChromeOS shelf context menu

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

 // Copyright 2014 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_APP_WINDOW_LAUNCHER_ITEM_CONTROLLER_H_
 #define CHROME_BROWSER_UI_ASH_LAUNCHER_APP_WINDOW_LAUNCHER_ITEM_CONTROLLER_H_
 
 #include <list>
 #include <string>
 
@@ skipping 59 matching lines @@
   virtual void OnWindowPropertyChanged(aura::Window* window,
                                        const void* key,
                                        intptr_t old) OVERRIDE;
 
   // Get the number of running applications/incarnations of this.
   size_t app_window_count() const { return app_windows_.size(); }
 
   // Activates the window at position |index|.
   void ActivateIndexedApp(size_t index);
 
+  // Install the app. Only valid for ephemeral apps, which can be promoted to
+  // regular installed apps.
+  void InstallApp();
+
  private:
   typedef std::list<apps::AppWindow*> AppWindowList;
 
   void ShowAndActivateOrMinimize(apps::AppWindow* app_window);
 
   // Activate the given |window_to_show|, or - if already selected - advance to
   // the next window of similar type.
   void ActivateOrAdvanceToNextAppWindow(apps::AppWindow* window_to_show);
 
   // List of associated app windows
   AppWindowList app_windows_;
 
   // Pointer to the most recently active app window
   apps::AppWindow* last_active_app_window_;
 
   // The launcher id associated with this set of windows. There is one
   // AppLauncherItemController for each |app_shelf_id_|.
   const std::string app_shelf_id_;
 
   // Scoped list of observed windows (for removal on destruction)
   ScopedObserver<aura::Window, aura::WindowObserver> observed_windows_;
 
   DISALLOW_COPY_AND_ASSIGN(AppWindowLauncherItemController);
 };
 
 #endif  // CHROME_BROWSER_UI_ASH_LAUNCHER_APP_WINDOW_LAUNCHER_ITEM_CONTROLLER_H_