arc: Add Arc Kiosk app service and ability to launch kiosk apps.

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

 // 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_ARC_APP_WINDOW_LAUNCHER_CONTROLLER_H_
 #define CHROME_BROWSER_UI_ASH_LAUNCHER_ARC_APP_WINDOW_LAUNCHER_CONTROLLER_H_
 
 #include <map>
 #include <memory>
 #include <vector>
@@ skipping 32 matching lines @@
   ArcAppWindowLauncherController(ChromeLauncherController* owner,
                                  ash::ShelfDelegate* shelf_delegate);
   ~ArcAppWindowLauncherController() override;
 
   // Returns shelf app id. Play Store app is mapped to Arc platform host app.
   static std::string GetShelfAppIdFromArcAppId(const std::string& arc_app_id);
 
   // Returns Arc app id. Arc platform host app is mapped to Play Store app.
   static std::string GetArcAppIdFromShelfAppId(const std::string& shelf_app_id);
 
+  // Returns Arc task id for the window.
+  static int GetWindowTaskId(aura::Window* window);
+
   // AppWindowLauncherController:
   void ActiveUserChanged(const std::string& user_email) override;
   void AdditionalUserAddedToSession(Profile* profile) override;
 
   // aura::EnvObserver:
   void OnWindowInitialized(aura::Window* window) override;
 
   // aura::WindowObserver:
   void OnWindowVisibilityChanged(aura::Window* window, bool visible) override;
   void OnWindowDestroying(aura::Window* window) override;
@@ skipping 55 matching lines @@
   TaskIdToAppWindowInfo task_id_to_app_window_info_;
   ShelfAppIdToAppControllerMap app_controller_map_;
   std::vector<aura::Window*> observed_windows_;
   Profile* observed_profile_ = nullptr;
   bool observing_shell_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(ArcAppWindowLauncherController);
 };
 
 #endif  // CHROME_BROWSER_UI_ASH_LAUNCHER_ARC_APP_WINDOW_LAUNCHER_CONTROLLER_H_