gpu: A common GpuMemoryBufferManager implemenetation for clients.

services/ui/public/cpp/gpu_service.cc

Index: services/ui/public/cpp/gpu_service.cc
diff --git a/services/ui/public/cpp/gpu_service.cc b/services/ui/public/cpp/gpu_service.cc
index af8d95f27380012ca5da4dfbe2956393fa78d4a0..32363449dea5a8d3fdba7a43c437f9639d0db09f 100644
--- a/services/ui/public/cpp/gpu_service.cc
+++ b/services/ui/public/cpp/gpu_service.cc
@@ -92,7 +92,7 @@ scoped_refptr<gpu::GpuChannelHost> GpuService::EstablishGpuChannelSync() {
 }
 
 gpu::GpuMemoryBufferManager* GpuService::GetGpuMemoryBufferManager() {
-  return gpu_memory_buffer_manager_.get();
+  return gpu_memory_buffer_manager();
 }
 
 scoped_refptr<gpu::GpuChannelHost> GpuService::GetGpuChannel() {
@@ -115,7 +115,7 @@ void GpuService::OnEstablishedGpuChannel(
   if (client_id) {
     gpu_channel_ = gpu::GpuChannelHost::Create(
         this, client_id, gpu_info, IPC::ChannelHandle(channel_handle.release()),
-        &shutdown_event_, gpu_memory_buffer_manager_.get());
+        &shutdown_event_, gpu_memory_buffer_manager());
   }
 
   gpu_service_.reset();