GLContext no longer holds a pointer to a GLSurface.

ui/gfx/gl/gl_context_stub.cc

 // 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.
 
 #include "ui/gfx/gl/gl_context_stub.h"
 
 namespace gfx {
 
 GLContextStub::GLContextStub() {
 }
 
 GLContextStub::~GLContextStub() {
 }
 
-bool GLContextStub::MakeCurrent() {
+bool GLContextStub::MakeCurrent(GLSurface* surface) {
   return true;
 }
 
-bool GLContextStub::IsCurrent() {
-  return true;
+void GLContextStub::ReleaseCurrent(GLSurface* surface) {
 }
 
-bool GLContextStub::IsOffscreen() {
-  return false;
-}
-
-bool GLContextStub::SwapBuffers() {
+bool GLContextStub::IsCurrent(GLSurface* surface) {
   return true;
 }
 
-gfx::Size GLContextStub::GetSize() {
-  return size_;
-}
-
 void* GLContextStub::GetHandle() {
   return NULL;
 }
 
 std::string GLContextStub::GetExtensions() {
   return std::string();
 }
 
 }  // namespace gfx