Plumbing explicit share groups through context creation

content/browser/compositor/gpu_process_transport_factory.cc

 // Copyright 2014 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/browser/compositor/gpu_process_transport_factory.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 426 matching lines @@
   if (!gpu_channel_host)
     return scoped_ptr<WebGraphicsContext3DCommandBufferImpl>();
   GURL url("chrome://gpu/GpuProcessTransportFactory::CreateContextCommon");
   scoped_ptr<WebGraphicsContext3DCommandBufferImpl> context(
       new WebGraphicsContext3DCommandBufferImpl(
           surface_id,
           url,
           gpu_channel_host.get(),
           attrs,
           false,
-          WebGraphicsContext3DCommandBufferImpl::SharedMemoryLimits()));
+          WebGraphicsContext3DCommandBufferImpl::SharedMemoryLimits(),
+          NULL));
   return context.Pass();
 }
 
 void GpuProcessTransportFactory::OnLostMainThreadSharedContextInsideCallback() {
   base::MessageLoop::current()->PostTask(
       FROM_HERE,
       base::Bind(&GpuProcessTransportFactory::OnLostMainThreadSharedContext,
                  callback_factory_.GetWeakPtr()));
 }
 
@@ skipping 17 matching lines @@
                     observer_list_,
                     OnLostResources());
 
   // Kill things that use the shared context before killing the shared context.
   lost_gl_helper.reset();
   lost_offscreen_compositor_contexts = NULL;
   lost_shared_main_thread_contexts  = NULL;
 }
 
 }  // namespace content