services/ui: Add mojom API for creating/destroying gpu memory buffer.

services/ui/ws/gpu_service_proxy.cc

 // Copyright 2016 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 "services/ui/ws/gpu_service_proxy.h"
 
 #include "base/memory/shared_memory.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/threading/thread_task_runner_handle.h"
@@ skipping 47 matching lines @@
 }
 
 void GpuServiceProxy::OnInternalGpuChannelEstablished(
     mojo::ScopedMessagePipeHandle channel_handle) {
   io_thread_ = base::MakeUnique<base::Thread>("GPUIOThread");
   base::Thread::Options thread_options(base::MessageLoop::TYPE_IO, 0);
   thread_options.priority = base::ThreadPriority::NORMAL;
   CHECK(io_thread_->StartWithOptions(thread_options));
 
   gpu_memory_buffer_manager_ = base::MakeUnique<MusGpuMemoryBufferManager>(
-      gpu_main_.gpu_service(), kInternalGpuChannelClientId);
+      gpu_service_.get(), kInternalGpuChannelClientId);
   gpu_channel_ = gpu::GpuChannelHost::Create(
       this, kInternalGpuChannelClientId, gpu_info_,
       IPC::ChannelHandle(channel_handle.release()), &shutdown_event_,
       gpu_memory_buffer_manager_.get());
   if (delegate_)
     delegate_->OnGpuChannelEstablished(gpu_channel_);
 }
 
 void GpuServiceProxy::OnGpuChannelEstablished(
     const EstablishGpuChannelCallback& callback,
@@ skipping 42 matching lines @@
 std::unique_ptr<base::SharedMemory> GpuServiceProxy::AllocateSharedMemory(
     size_t size) {
   std::unique_ptr<base::SharedMemory> shm(new base::SharedMemory());
   if (!shm->CreateAnonymous(size))
     shm.reset();
   return shm;
 }
 
 }  // namespace ws
 }  // namespace ui