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

chrome/browser/ui/views/frame/browser_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 CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_VIEW_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 394 matching lines @@
   virtual void GetAccessiblePanes(
       std::vector<views::AccessiblePaneView*>* panes);
 
   int last_focused_view_storage_id() const {
     return last_focused_view_storage_id_;
   }
 
   // Overridden from views::View:
   virtual std::string GetClassName() const OVERRIDE;
   virtual void Layout() OVERRIDE;
-  virtual void PaintChildren(gfx::Canvas* canvas) OVERRIDE;
+  virtual void PaintChildren(gfx::CanvasSkia* canvas) OVERRIDE;
   virtual void ViewHierarchyChanged(bool is_add,
                                     views::View* parent,
                                     views::View* child) OVERRIDE;
   virtual void ChildPreferredSizeChanged(View* child) OVERRIDE;
   virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
 
   // Factory Method.
   // Returns a new LayoutManager for this browser view. A subclass may
   // override to implement different layout policy.
   virtual views::LayoutManager* CreateLayoutManager() const;
@@ skipping 280 matching lines @@
   bool force_location_bar_focus_;
 
   PendingFullscreenRequest fullscreen_request_;
 
   BrowserWindowMoveObserver* move_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_VIEW_H_