arc: Make Play Store item persistance in shelf.

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

Index: chrome/browser/ui/ash/launcher/app_shortcut_launcher_item_controller.h
diff --git a/chrome/browser/ui/ash/launcher/app_shortcut_launcher_item_controller.h b/chrome/browser/ui/ash/launcher/app_shortcut_launcher_item_controller.h
index 20165a45aabb58dedda9851063d48bfee37d1183..a71c1822e07006b61766213b65371f3648972380 100644
--- a/chrome/browser/ui/ash/launcher/app_shortcut_launcher_item_controller.h
+++ b/chrome/browser/ui/ash/launcher/app_shortcut_launcher_item_controller.h
@@ -27,11 +27,12 @@ class ChromeLauncherController;
 // item with the appropriate LauncherItemController type).
 class AppShortcutLauncherItemController : public LauncherItemController {
  public:
-  AppShortcutLauncherItemController(const std::string& app_id,
-                                    ChromeLauncherController* controller);
-
   ~AppShortcutLauncherItemController() override;
 
+  static AppShortcutLauncherItemController* Create(
+      const std::string& app_id,
+      ChromeLauncherController* controller);
+
   std::vector<content::WebContents*> GetRunningApplications();
 
   // LauncherItemController overrides:
@@ -56,6 +57,12 @@ class AppShortcutLauncherItemController : public LauncherItemController {
   // Set the refocus url pattern. Used by unit tests.
   void set_refocus_url(const GURL& refocus_url) { refocus_url_ = refocus_url; }
 
+  ChromeLauncherController* controller() { return chrome_launcher_controller_; }
+
+ protected:
+  AppShortcutLauncherItemController(const std::string& app_id,
+                                    ChromeLauncherController* controller);
+
  private:
   // Get the last running application.
   content::WebContents* GetLRUApplication();