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

ui/views/controls/tabbed_pane/tabbed_pane.h

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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_TABBED_PANE_TABBED_PANE_H_
 #define UI_VIEWS_CONTROLS_TABBED_PANE_TABBED_PANE_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/string16.h"
@@ skipping 69 matching lines @@
 
   // View:
   virtual void Layout() OVERRIDE;
   virtual void ViewHierarchyChanged(bool is_add,
                                     View* parent,
                                     View* child) OVERRIDE;
   // Handles Ctrl+Tab and Ctrl+Shift+Tab navigation of pages.
   virtual bool AcceleratorPressed(const ui::Accelerator& accelerator) OVERRIDE;
   virtual std::string GetClassName() const OVERRIDE;
   virtual void OnFocus() OVERRIDE;
-  virtual void OnPaintFocusBorder(gfx::Canvas* canvas) OVERRIDE;
+  virtual void OnPaintFocusBorder(gfx::CanvasSkia* canvas) OVERRIDE;
   virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
 
   // The listener we notify about tab selection changes.
   TabbedPaneListener* listener_;
 
   // The accessible name of this view.
   string16 accessible_name_;
 
   DISALLOW_COPY_AND_ASSIGN(TabbedPane);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_TABBED_PANE_TABBED_PANE_H_