InProcessGL: Share MailboxManager per service

gpu/command_buffer/service/in_process_command_buffer.cc

 // Copyright 2013 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 "gpu/command_buffer/service/in_process_command_buffer.h"
 
 #include <queue>
 #include <set>
 #include <utility>
 
@@ skipping 172 matching lines @@
   g_sync_point_manager.Get().WaitSyncPoint(sync_point);
   return true;
 }
 
 }  // anonyous namespace
 
 InProcessCommandBuffer::Service::Service() {}
 
 InProcessCommandBuffer::Service::~Service() {}
 
+scoped_refptr<gles2::MailboxManager>
+InProcessCommandBuffer::Service::mailbox_manager() {
+  if (!mailbox_manager_.get())
+    mailbox_manager_ = new gles2::MailboxManager();
+  return mailbox_manager_;
+}
+
 scoped_refptr<InProcessCommandBuffer::Service>
 InProcessCommandBuffer::GetDefaultService() {
   base::AutoLock lock(default_thread_clients_lock_.Get());
   scoped_refptr<Service> service;
   if (!default_thread_clients_.Get().empty()) {
     InProcessCommandBuffer* other = *default_thread_clients_.Get().begin();
     service = other->service_;
     DCHECK(service.get());
   } else {
     service = new GpuInProcessThread;
@@ skipping 132 matching lines @@
                         : new gfx::GLShareGroup;
 
 #if defined(OS_ANDROID)
   stream_texture_manager_.reset(new StreamTextureManagerInProcess);
 #endif
 
   bool bind_generates_resource = false;
   decoder_.reset(gles2::GLES2Decoder::Create(
       params.context_group
           ? params.context_group->decoder_->GetContextGroup()
-          : new gles2::ContextGroup(NULL,
+          : new gles2::ContextGroup(service_->mailbox_manager(),
                                     NULL,
                                     service_->shader_translator_cache(),
                                     NULL,
                                     bind_generates_resource)));
 
   gpu_scheduler_.reset(
       new GpuScheduler(command_buffer.get(), decoder_.get(), decoder_.get()));
   command_buffer->SetGetBufferChangeCallback(base::Bind(
       &GpuScheduler::SetGetBuffer, base::Unretained(gpu_scheduler_.get())));
   command_buffer_ = command_buffer.Pass();
@@ skipping 486 matching lines @@
 }
 #endif
 
 // static
 void InProcessCommandBuffer::SetGpuMemoryBufferFactory(
     InProcessGpuMemoryBufferFactory* factory) {
   g_gpu_memory_buffer_factory = factory;
 }
 
 }  // namespace gpu