views: Make SubmenuView::PaintChildren use the canvas via PaintRecorder

ui/views/controls/menu/submenu_view.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_VIEWS_CONTROLS_MENU_SUBMENU_VIEW_H_
 #define UI_VIEWS_CONTROLS_MENU_SUBMENU_VIEW_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 148 matching lines @@
   // Overridden from View:
   const char* GetClassName() const override;
 
   // View method. Overridden to schedule a paint. We do this so that when
   // scrolling occurs, everything is repainted correctly.
   void OnBoundsChanged(const gfx::Rect& previous_bounds) override;
 
   void ChildPreferredSizeChanged(View* child) override;
 
  private:
-  // Paints the drop indicator. This is only invoked if item is non-NULL and
-  // position is not DROP_NONE.
-  void PaintDropIndicator(gfx::Canvas* canvas,
-                          MenuItemView* item,
-                          MenuDelegate::DropPosition position);
-
   void SchedulePaintForDropIndicator(MenuItemView* item,
                                      MenuDelegate::DropPosition position);
 
   // Calculates the location of th edrop indicator.
   gfx::Rect CalculateDropIndicatorBounds(MenuItemView* item,
                                          MenuDelegate::DropPosition position);
 
   // Implementation of ScrollDelegate
   bool OnScroll(float dx, float dy) override;
 
@@ skipping 33 matching lines @@
   float roundoff_error_;
 
   PrefixSelector prefix_selector_;
 
   DISALLOW_COPY_AND_ASSIGN(SubmenuView);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_MENU_SUBMENU_VIEW_H_