Always reverse rows prior to presenting in AcceleratedSurface on Windows.

ui/surface/accelerated_surface_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_SURFACE_ACCELERATED_SURFACE_WIN_H_
 #define UI_SURFACE_ACCELERATED_SURFACE_WIN_H_
 
 #include <d3d9.h>
 
 #include "base/callback_forward.h"
@@ skipping 84 matching lines @@
   // window has been resized.
   gfx::Size present_size_;
 
   // This is a shared texture that is being presented from.
   base::win::ScopedComPtr<IDirect3DTexture9> source_texture_;
 
   // The swap chain is presented to the child window. Copy semantics
   // are used so it is possible to represent it to quickly validate the window.
   base::win::ScopedComPtr<IDirect3DSwapChain9> swap_chain_;
 
-  // Whether surfaces are flipped vertically prior to presentation.
-  bool reverse_rows_;
-
   bool hidden_;
 
   DISALLOW_COPY_AND_ASSIGN(AcceleratedPresenter);
 };
 
 class SURFACE_EXPORT AcceleratedSurface {
  public:
   AcceleratedSurface(gfx::NativeWindow window);
   ~AcceleratedSurface();
 
@@ skipping 13 matching lines @@
 
   // Indicates that the surface has become invisible.
   void WasHidden();
 
  private:
   const scoped_refptr<AcceleratedPresenter> presenter_;
   DISALLOW_COPY_AND_ASSIGN(AcceleratedSurface);
 };
 
 #endif  // UI_SURFACE_ACCELERATED_SURFACE_WIN_H_