Use inner HWND for accelerated rendering on windows

app/gfx/gl/gl_context_egl.h

 // Copyright (c) 2010 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 APP_GFX_GL_GL_CONTEXT_EGL_H_
 #define APP_GFX_GL_GL_CONTEXT_EGL_H_
 #pragma once
 
 #include "gfx/size.h"
 #include "app/gfx/gl/gl_context.h"
@@ skipping 33 matching lines @@
 
   // Initialize an EGL context.
   bool Initialize();
 
   // Implement GLContext.
   virtual void Destroy();
   virtual bool MakeCurrent();
   virtual bool IsCurrent();
   virtual bool IsOffscreen();
   virtual bool SwapBuffers();
+  virtual void SetSize(gfx::Size);
   virtual gfx::Size GetSize();
   virtual void* GetHandle();
   virtual void SetSwapInterval(int interval);
 
   // Implement BaseEGLContext.
   virtual EGLSurface GetSurface();
 
  private:
   void* window_;
   EGLSurface surface_;
@@ skipping 32 matching lines @@
   EGLSurface surface_;
   bool own_surface_;
   EGLContext context_;
 
   DISALLOW_COPY_AND_ASSIGN(SecondaryEGLContext);
 };
 
 }  // namespace gfx
 
 #endif  // APP_GFX_GL_GL_CONTEXT_EGL_H_