Remove Downcasting RVContextMenuBase in ContextMenuDeleagate implementations.

athena/content/web_contents_view_delegate_factory_impl.cc

Index: athena/content/web_contents_view_delegate_factory_impl.cc
diff --git a/athena/content/web_contents_view_delegate_factory_impl.cc b/athena/content/web_contents_view_delegate_factory_impl.cc
index 3346aee3ccc7dfbe31d75f5aa0e3aaa007685d71..003957de5a7c5dce4957345aad02254e5ca71447 100644
--- a/athena/content/web_contents_view_delegate_factory_impl.cc
+++ b/athena/content/web_contents_view_delegate_factory_impl.cc
@@ -81,37 +81,10 @@ class WebContentsViewDelegateImpl : public content::WebContentsViewDelegate {
   void ShowMenu(scoped_ptr<RenderViewContextMenuImpl> menu) {
     context_menu_.reset(menu.release());
 
-    if (!context_menu_.get())
+    if (!context_menu_)
       return;
 
-    // Menus need a Widget to work. If we're not the active tab we won't
-    // necessarily be in a widget.
-    views::Widget* top_level_widget = GetTopLevelWidget();
-    if (!top_level_widget)
-      return;
-
-    const content::ContextMenuParams& params = context_menu_->params();
-    // Don't show empty menus.
-    if (context_menu_->menu_model().GetItemCount() == 0)
-      return;
-
-    gfx::Point screen_point(params.x, params.y);
-
-    // Convert from target window coordinates to root window coordinates.
-    aura::Window* target_window = GetActiveNativeView();
-    aura::Window* root_window = target_window->GetRootWindow();
-    aura::client::ScreenPositionClient* screen_position_client =
-        aura::client::GetScreenPositionClient(root_window);
-    if (screen_position_client) {
-      screen_position_client->ConvertPointToScreen(target_window,
-                                                   &screen_point);
-    }
-    // Enable recursive tasks on the message loop so we can get updates while
-    // the context menu is being displayed.
-    base::MessageLoop::ScopedNestableTaskAllower allow(
-        base::MessageLoop::current());
-    context_menu_->RunMenuAt(
-        top_level_widget, screen_point, params.source_type);
+    context_menu_->Show();
   }
 
   aura::Window* GetActiveNativeView() {