arc: Support running Arc app in shelf

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

Index: chrome/browser/ui/ash/launcher/extension_app_window_launcher_item_controller.h
diff --git a/chrome/browser/ui/ash/launcher/extension_app_window_launcher_item_controller.h b/chrome/browser/ui/ash/launcher/extension_app_window_launcher_item_controller.h
new file mode 100644
index 0000000000000000000000000000000000000000..fc9002fb28c057d58bea67ab8f028b51bd1c509e
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+++ b/chrome/browser/ui/ash/launcher/extension_app_window_launcher_item_controller.h
@@ -0,0 +1,54 @@
+// 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_EXTENSION_APP_WINDOW_LAUNCHER_ITEM_CONTROLLER_H_
+#define CHROME_BROWSER_UI_ASH_LAUNCHER_EXTENSION_APP_WINDOW_LAUNCHER_ITEM_CONTROLLER_H_
+
+#include <map>
+#include <string>
+
+#include "base/macros.h"
+#include "chrome/browser/ui/ash/launcher/app_window_launcher_item_controller.h"
+
+namespace extensions {
+class AppWindow;
+}
+
+class ChromeLauncherController;
+
+class ExtensionAppWindowLauncherItemController
+    : public AppWindowLauncherItemController {
+ public:
+  ExtensionAppWindowLauncherItemController(
+      Type type,
+      const std::string& app_shelf_id,
+      const std::string& app_id,
+      ChromeLauncherController* controller);
+
+  ~ExtensionAppWindowLauncherItemController() override;
+
+  void AddAppWindow(extensions::AppWindow* app_window);
+
+  // LauncherItemController overrides:
+  ChromeLauncherAppMenuItems GetApplicationList(int event_flags) override;
+  ash::ShelfItemDelegate::PerformedAction ItemSelected(
+      const ui::Event& eent) override;
+  base::string16 GetTitle() override;
+  ash::ShelfMenuModel* CreateApplicationMenu(int event_flags) override;
+  bool IsDraggable() override;
+  bool ShouldShowTooltip() override;
+
+ protected:
+  // AppWindowLauncherItemController:
+  void OnWindowRemoved(ui::BaseWindow* window) override;
+
+ private:
+  using WindowToAppWindow = std::map<ui::BaseWindow*, extensions::AppWindow*>;
+
+  WindowToAppWindow window_to_app_window_;
+
+  DISALLOW_COPY_AND_ASSIGN(ExtensionAppWindowLauncherItemController);
+};
+
+#endif  // CHROME_BROWSER_UI_ASH_LAUNCHER_EXTENSION_APP_WINDOW_LAUNCHER_ITEM_CONTROLLER_H_