GLContext no longer holds a pointer to a GLSurface.

ui/gfx/gl/gl_context_stub.h

 // Copyright (c) 2011 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_GFX_GL_GL_CONTEXT_STUB_H_
 #define UI_GFX_GL_GL_CONTEXT_STUB_H_
 #pragma once
 
 #include "ui/gfx/gl/gl_context.h"
 
 namespace gfx {
 
 // A GLContext that does nothing for unit tests.
 class GLContextStub : public GLContext {
  public:
   GLContextStub();
   virtual ~GLContextStub();
 
-  void SetSize(const gfx::Size& size) { size_ = size; }
-
   // Implement GLContext.
   virtual void Destroy() {}
-  virtual bool MakeCurrent();
-  virtual bool IsCurrent();
-  virtual bool IsOffscreen();
-  virtual bool SwapBuffers();
-  virtual gfx::Size GetSize();
+  virtual bool MakeCurrent(GLSurface* surface);
+  virtual void ReleaseCurrent(GLSurface* surface);
+  virtual bool IsCurrent(GLSurface* surface);
   virtual void* GetHandle();
   virtual void SetSwapInterval(int interval) {}
   virtual std::string GetExtensions();
 
  private:
-  gfx::Size size_;
   DISALLOW_COPY_AND_ASSIGN(GLContextStub);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_GL_GL_CONTEXT_STUB_H_