ui/gfx: Make gfx::Canvas inherit from gfx::CanvasSkia.

ui/views/controls/menu/menu_scroll_view_container.cc

 // 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.
 
 #include "ui/views/controls/menu/menu_scroll_view_container.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <uxtheme.h>
 #include <Vssym32.h>
 #endif
 
 #include "ui/base/accessibility/accessible_view_state.h"
-#include "ui/gfx/canvas_skia.h"
+#include "ui/gfx/canvas.h"
 #include "ui/gfx/color_utils.h"
 #include "ui/gfx/native_theme.h"
 #include "ui/views/border.h"
 #include "ui/views/controls/menu/menu_config.h"
 #include "ui/views/controls/menu/menu_controller.h"
 #include "ui/views/controls/menu/menu_item_view.h"
 #include "ui/views/controls/menu/submenu_view.h"
 
 using gfx::NativeTheme;
 
@@ skipping 213 matching lines @@
 
 void MenuScrollViewContainer::OnBoundsChanged(
     const gfx::Rect& previous_bounds) {
   gfx::Size content_pref = scroll_view_->GetContents()->GetPreferredSize();
   scroll_up_button_->SetVisible(content_pref.height() > height());
   scroll_down_button_->SetVisible(content_pref.height() > height());
   Layout();
 }
 
 }  // namespace views