Plumbing explicit share groups through context creation

content/browser/renderer_host/image_transport_factory_android.cc

 // Copyright (c) 2012 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/renderer_host/image_transport_factory_android.h"
 
 #include "base/lazy_instance.h"
 #include "base/strings/stringprintf.h"
 #include "content/browser/gpu/browser_gpu_channel_host_factory.h"
 #include "content/common/gpu/client/gl_helper.h"
@@ skipping 70 matching lines @@
   limits.max_transfer_buffer_size = std::min(
       3 * full_screen_texture_size_in_bytes, kDefaultMaxTransferBufferSize);
   limits.mapped_memory_reclaim_limit =
       WebGraphicsContext3DCommandBufferImpl::kNoLimit;
   context_.reset(
       new WebGraphicsContext3DCommandBufferImpl(0,  // offscreen
                                                 url,
                                                 gpu_channel_host.get(),
                                                 attrs,
                                                 false,
-                                                limits));
+                                                limits,
+                                                NULL));
   context_->setContextLostCallback(context_lost_listener_.get());
   if (context_->makeContextCurrent())
     context_->pushGroupMarkerEXT(
         base::StringPrintf("CmdBufferImageTransportFactory-%p",
                            context_.get()).c_str());
 }
 
 CmdBufferImageTransportFactory::~CmdBufferImageTransportFactory() {
   context_->setContextLostCallback(NULL);
 }
@@ skipping 85 matching lines @@
 
 void GLContextLostListener::DidLoseContext() {
   delete g_factory;
   g_factory = NULL;
   FOR_EACH_OBSERVER(ImageTransportFactoryAndroidObserver,
       g_factory_observers.Get(),
       OnLostResources());
 }
 
 } // namespace content