arc: Make Play Store item persistance in shelf.

chrome/browser/ui/ash/launcher/arc_playstore_shortcut_launcher_item_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_PLAYSTORE_SHORTCUT_LAUNCHER_ITEM_CONTROLLER_H_
+#define CHROME_BROWSER_UI_ASH_LAUNCHER_ARC_PLAYSTORE_SHORTCUT_LAUNCHER_ITEM_CONTROLLER_H_
+
+#include <memory>
+
+#include "base/macros.h"
+#include "chrome/browser/ui/ash/launcher/app_shortcut_launcher_item_controller.h"
+#include "chrome/browser/ui/ash/launcher/chrome_launcher_types.h"
+
+class ArcAppLauncher;
+class ChromeLauncherController;
+
+class ArcPlaystoreShortcutLauncherItemController
+    : public AppShortcutLauncherItemController {
+ public:
+  ArcPlaystoreShortcutLauncherItemController(
+      ChromeLauncherController* controller);
+  ~ArcPlaystoreShortcutLauncherItemController() override;
+
+  // LauncherItemController overrides:
+  ash::ShelfItemDelegate::PerformedAction Activate(
+      ash::LaunchSource source) override;
+
+ private:
+  std::unique_ptr<ArcAppLauncher> playstore_launcher_;
+
+  DISALLOW_COPY_AND_ASSIGN(ArcPlaystoreShortcutLauncherItemController);
+};
+
+#endif  // CHROME_BROWSER_UI_ASH_LAUNCHER_ARC_PLAYSTORE_SHORTCUT_LAUNCHER_ITEM_CONTROLLER_H_