mash: Use mojo for ShelfItemDelegate and [app] MenuItem.

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 a21a5f4243302141518f0332ef0e9bd81d0496a9..6007c23aec06ba456049a9aa3c4036925c8a3791 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
@@ -41,12 +41,12 @@ class AppShortcutLauncherItemController : public LauncherItemController {
   std::vector<content::WebContents*> GetRunningApplications();
 
   // LauncherItemController overrides:
-  ash::ShelfAction ItemSelected(ui::EventType event_type,
-                                int event_flags,
-                                int64_t display_id,
-                                ash::ShelfLaunchSource source) override;
-  ash::ShelfAppMenuItemList GetAppMenuItems(int event_flags) override;
-  void ExecuteCommand(uint32_t command_id, int event_flags) override;
+  void ItemSelected(std::unique_ptr<ui::Event> event,
+                    int64_t display_id,
+                    ash::ShelfLaunchSource source,
+                    const ItemSelectedCallback& callback) override;
+  MenuItemList GetAppMenuItems(int event_flags) override;
+  void ExecuteCommand(uint32_t command_id, int32_t event_flags) override;
   void Close() override;
 
   // Get the refocus url pattern, which can be used to identify this application