Adds View::GetNativeTheme() to get the NativeTheme. The interesting

ui/views/widget/native_widget_win.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_WIDGET_NATIVE_WIDGET_WIN_H_
 #define UI_VIEWS_WIDGET_NATIVE_WIDGET_WIN_H_
 
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 149 matching lines @@
                             int operation) OVERRIDE;
   virtual void SchedulePaintInRect(const gfx::Rect& rect) OVERRIDE;
   virtual void SetCursor(gfx::NativeCursor cursor) OVERRIDE;
   virtual void ClearNativeFocus() OVERRIDE;
   virtual gfx::Rect GetWorkAreaBoundsInScreen() const OVERRIDE;
   virtual void SetInactiveRenderingDisabled(bool value) OVERRIDE;
   virtual Widget::MoveLoopResult RunMoveLoop(
       const gfx::Vector2d& drag_offset) OVERRIDE;
   virtual void EndMoveLoop() OVERRIDE;
   virtual void SetVisibilityChangedAnimationsEnabled(bool value) OVERRIDE;
+  virtual ui::NativeTheme* GetNativeTheme() OVERRIDE;
 
  protected:
   // Deletes this window as it is destroyed, override to provide different
   // behavior.
   virtual void OnFinalMessage(HWND window);
 
   // Called when a MSAA screen reader client is detected.
   virtual void OnScreenReaderDetected();
 
   HWNDMessageHandler* GetMessageHandler();
@@ skipping 121 matching lines @@
   bool has_non_client_view_;
 
   scoped_ptr<HWNDMessageHandler> message_handler_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeWidgetWin);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_NATIVE_WIDGET_WIN_H_