Views: Expose an on_closed callback via the MenuRunner constructor.

chrome/browser/ui/views/download/download_shelf_context_menu_view.h

Index: chrome/browser/ui/views/download/download_shelf_context_menu_view.h
diff --git a/chrome/browser/ui/views/download/download_shelf_context_menu_view.h b/chrome/browser/ui/views/download/download_shelf_context_menu_view.h
index b956e6a7165206d954f968f2176c9278a215c66f..53cd99127bace147e1ca844fd3c38889b79f9117 100644
--- a/chrome/browser/ui/views/download/download_shelf_context_menu_view.h
+++ b/chrome/browser/ui/views/download/download_shelf_context_menu_view.h
@@ -23,7 +23,6 @@ class Rect;
 }
 
 namespace views {
-class MenuModelAdapter;
 class MenuRunner;
 class Widget;
 }
@@ -43,10 +42,9 @@ class DownloadShelfContextMenuView : public DownloadShelfContextMenu {
            const base::Closure& on_menu_closed_callback);
 
  private:
-  // Callback for MenuModelAdapter
+  // Callback for MenuRunner.
   void OnMenuClosed(const base::Closure& on_menu_closed_callback);
 
-  std::unique_ptr<views::MenuModelAdapter> menu_model_adapter_;
   std::unique_ptr<views::MenuRunner> menu_runner_;
 
   // Time the menu was closed.