Command to mark surface inactive, so gpu process can release resources.

ui/gfx/gl/gl_surface.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_surface.h"
 
 #include "base/threading/thread_local.h"
 #include "ui/gfx/gl/gl_context.h"
 
 namespace gfx {
@@ skipping 13 matching lines @@
   return true;
 }
 
 unsigned int GLSurface::GetBackingFrameBufferObject() {
   return 0;
 }
 
 void GLSurface::OnMakeCurrent(GLContext* context) {
 }
 
+void GLSurface::SetVisible(bool visible) {
+}
+
 GLSurface* GLSurface::GetCurrent() {
   return current_surface_.Get();
 }
 
 void GLSurface::SetCurrent(GLSurface* surface) {
   current_surface_.Set(surface);
 }
 
 }  // namespace gfx