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

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

Index: chrome/browser/ui/ash/launcher/browser_shortcut_launcher_item_controller.h
diff --git a/chrome/browser/ui/ash/launcher/browser_shortcut_launcher_item_controller.h b/chrome/browser/ui/ash/launcher/browser_shortcut_launcher_item_controller.h
index 987b5407f3b368a2dd414d65eb43e3bb9c32b42f..82370168dc3bc8a76a1e3f042ee5c2964b2a1862 100644
--- a/chrome/browser/ui/ash/launcher/browser_shortcut_launcher_item_controller.h
+++ b/chrome/browser/ui/ash/launcher/browser_shortcut_launcher_item_controller.h
@@ -43,12 +43,13 @@ class BrowserShortcutLauncherItemController
   bool IsListOfActiveBrowserEmpty();
 
   // 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;
+  std::vector<ash::mojom::MenuItemPtr> GetAppMenuItems(
+      int event_flags) override;
+  void ExecuteCommand(uint32_t command_id, int32_t event_flags) override;
   void Close() override;
 
  private: