arc: Support running Arc app in shelf

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

-// Copyright 2014 The Chromium Authors. All rights reserved.
+// Copyright 2016 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_CONTROLLER_H_
-#define CHROME_BROWSER_UI_ASH_LAUNCHER_APP_WINDOW_LAUNCHER_CONTROLLER_H_
+#ifndef CHROME_BROWSER_UI_ASH_LAUNCHER_EXTENSION_APP_WINDOW_LAUNCHER_CONTROLLER_H_
+#define CHROME_BROWSER_UI_ASH_LAUNCHER_EXTENSION_APP_WINDOW_LAUNCHER_CONTROLLER_H_
 
 #include <list>
 #include <map>
 #include <string>
 
 #include "base/macros.h"
+#include "chrome/browser/ui/ash/launcher/app_window_launcher_controller.h"
 #include "extensions/browser/app_window/app_window_registry.h"
 #include "ui/aura/window_observer.h"
-#include "ui/wm/public/activation_change_observer.h"
 
 namespace aura {
 
 class Window;
-
-namespace client {
-class ActivationClient;
-}
 }
 
 namespace extensions {
 class AppWindow;
 }
 
 class ChromeLauncherController;
 class Profile;
-class AppWindowLauncherItemController;
+class ExtensionAppWindowLauncherItemController;
 
 // AppWindowLauncherController observes the app window registry and the
 // aura window manager. It handles adding and removing launcher items from
 // ChromeLauncherController.
-class AppWindowLauncherController
-    : public extensions::AppWindowRegistry::Observer,
-      public aura::WindowObserver,
-      public aura::client::ActivationChangeObserver {
+class ExtensionAppWindowLauncherController
+    : public AppWindowLauncherController,
+      public extensions::AppWindowRegistry::Observer,
+      public aura::WindowObserver {
  public:
-  explicit AppWindowLauncherController(ChromeLauncherController* owner);
-  ~AppWindowLauncherController() override;
+  explicit ExtensionAppWindowLauncherController(
+      ChromeLauncherController* owner);
+  ~ExtensionAppWindowLauncherController() override;
 
-  // Called by ChromeLauncherController when the active user changed and the
-  // items need to be updated.
-  virtual void ActiveUserChanged(const std::string& user_email) {}
-
-  // An additional user identified by |Profile|, got added to the existing
-  // session.
-  virtual void AdditionalUserAddedToSession(Profile* profile);
+  // AppWindowLauncherController:
+  void AdditionalUserAddedToSession(Profile* profile) override;
+  AppWindowLauncherItemController* ControllerForWindow(
+      aura::Window* window) override;
 
   // Overridden from AppWindowRegistry::Observer:
   void OnAppWindowIconChanged(extensions::AppWindow* app_window) override;
   void OnAppWindowShown(extensions::AppWindow* app_window,
                         bool was_hidden) override;
   void OnAppWindowHidden(extensions::AppWindow* app_window) override;
 
   // Overriden from aura::WindowObserver:
   void OnWindowDestroying(aura::Window* window) override;
 
-  // Overriden from client::ActivationChangeObserver:
-  void OnWindowActivated(
-      aura::client::ActivationChangeObserver::ActivationReason reason,
-      aura::Window* gained_active,
-      aura::Window* lost_active) override;
-
  protected:
   // Registers a app window with the shelf and this object.
   void RegisterApp(extensions::AppWindow* app_window);
 
   // Unregisters a app window with the shelf and this object.
   void UnregisterApp(aura::Window* window);
 
   // Check if a given window is known to the launcher controller.
   bool IsRegisteredApp(aura::Window* window);
 
  private:
-  typedef std::map<std::string, AppWindowLauncherItemController*>
-      AppControllerMap;
-  typedef std::map<aura::Window*, std::string> WindowToAppShelfIdMap;
+  using AppControllerMap =
+      std::map<std::string, ExtensionAppWindowLauncherItemController*>;
+  using WindowToAppShelfIdMap = std::map<aura::Window*, std::string>;
 
-  AppWindowLauncherItemController* ControllerForWindow(aura::Window* window);
-
-  ChromeLauncherController* owner_;
   // A set of unowned AppWindowRegistry pointers for loaded users.
   // Note that this will only be used with multiple users in the side by side
   // mode.
   std::set<extensions::AppWindowRegistry*> registry_;
-  aura::client::ActivationClient* activation_client_;
 
   // Map of app launcher id to controller.
   AppControllerMap app_controller_map_;
 
   // Allows us to get from an aura::Window to the app shelf id.
   WindowToAppShelfIdMap window_to_app_shelf_id_map_;
 
-  DISALLOW_COPY_AND_ASSIGN(AppWindowLauncherController);
+  DISALLOW_COPY_AND_ASSIGN(ExtensionAppWindowLauncherController);
 };
 
-#endif  // CHROME_BROWSER_UI_ASH_LAUNCHER_APP_WINDOW_LAUNCHER_CONTROLLER_H_
+#endif  // CHROME_BROWSER_UI_ASH_LAUNCHER_EXTENSION_APP_WINDOW_LAUNCHER_CONTROLLER_H_