mash: Move LauncherItemController to ash, rename ShelfItemDelegate.

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
index c547bbfa158aac127515634c6b5e8a27a4d6a708..29a365ad600ab67d53c9227f666d2009681e648c 100644
--- 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
@@ -14,22 +14,19 @@ namespace extensions {
 class AppWindow;
 }
 
-class ChromeLauncherController;
-
 // Shelf item delegate for extension app windows.
 class ExtensionAppWindowLauncherItemController
     : public AppWindowLauncherItemController {
  public:
-  ExtensionAppWindowLauncherItemController(
-      const ash::AppLaunchId& app_launch_id,
-      ChromeLauncherController* controller);
+  explicit ExtensionAppWindowLauncherItemController(
+      const ash::AppLaunchId& app_launch_id);
 
   ~ExtensionAppWindowLauncherItemController() override;
 
   void AddAppWindow(extensions::AppWindow* app_window);
 
   // AppWindowLauncherItemController:
-  MenuItemList GetAppMenuItems(int event_flags) override;
+  ash::MenuItemList GetAppMenuItems(int event_flags) override;
   void ExecuteCommand(uint32_t command_id, int32_t event_flags) override;
 
  private: