Implemented support for GL constext share groups in the renderer process.

content/renderer/pepper_platform_context_3d_impl.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 "content/renderer/pepper_platform_context_3d_impl.h"
 
 #include "content/renderer/render_thread.h"
 #include "content/renderer/gpu/renderer_gl_context.h"
 #include "content/renderer/gpu/gpu_channel_host.h"
 #include "content/renderer/gpu/command_buffer_proxy.h"
@@ skipping 77 matching lines @@
           break;
       }
     }
     attribs.push_back(RendererGLContext::NONE);
   }
 
   CommandBufferProxy* parent_command_buffer =
       parent_context_->GetCommandBufferProxy();
   command_buffer_ = channel_->CreateOffscreenCommandBuffer(
       surface_size,
+      NULL,
       "*",
       attribs,
       GURL::EmptyGURL());
   if (!command_buffer_)
     return false;
 
   if (!command_buffer_->SetParent(parent_command_buffer, parent_texture_id_))
     return false;
 
   command_buffer_->SetChannelErrorCallback(callback_factory_.NewCallback(
@@ skipping 26 matching lines @@
 }
 
 void PlatformContext3DImpl::OnContextLost() {
   DCHECK(command_buffer_);
 
   if (context_lost_callback_.get())
     context_lost_callback_->Run();
 }
 
 #endif  // ENABLE_GPU