Implement GpuArcVideoService for arc video accelerator

content/browser/gpu/gpu_process_host.cc

Index: content/browser/gpu/gpu_process_host.cc
diff --git a/content/browser/gpu/gpu_process_host.cc b/content/browser/gpu/gpu_process_host.cc
index ba1f79364d98d71b25d40f8a826e330ca26d55a2..e848db606ea5c28ec9da830b4543361634856f56 100644
--- a/content/browser/gpu/gpu_process_host.cc
+++ b/content/browser/gpu/gpu_process_host.cc
@@ -764,6 +764,17 @@ void GpuProcessHost::DestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
   Send(new GpuMsg_DestroyGpuMemoryBuffer(id, client_id, sync_token));
 }
 
+void GpuProcessHost::CreateArcVideoAcceleratorChannel(
+    const CreateArcVideoAcceleratorChannelCallback& callback) {
+  DCHECK(CalledOnValidThread());
+
+  if (Send(new GpuMsg_CreateArcVideoAcceleratorChannel())) {
+    create_arc_video_accelerator_channel_requests_.push(callback);
+  } else {
+    callback.Run(IPC::ChannelHandle());
+  }
+}
+
 void GpuProcessHost::OnInitialized(bool result, const gpu::GPUInfo& gpu_info) {
   UMA_HISTOGRAM_BOOLEAN("GPU.GPUProcessInitialized", result);
   initialized_ = result;
@@ -831,6 +842,17 @@ void GpuProcessHost::OnGpuMemoryBufferCreated(
   callback.Run(handle);
 }
 
+void GpuProcessHost::OnArcVideoAcceleratorChannelCreated(
+    const IPC::ChannelHandle& handle) {
+  if (create_arc_video_accelerator_channel_requests_.empty())

[Owen Lin, 2015/12/07 09:05:23]

Would you like to log the error situation?

[kcwu, 2015/12/10 10:17:37]

Done.

+    return;
+
+  CreateArcVideoAcceleratorChannelCallback callback =
+      create_arc_video_accelerator_channel_requests_.front();
+  create_arc_video_accelerator_channel_requests_.pop();
+  callback.Run(handle);
+}
+
 void GpuProcessHost::OnDidCreateOffscreenContext(const GURL& url) {
   urls_with_live_offscreen_contexts_.insert(url);
 }
@@ -1043,6 +1065,13 @@ void GpuProcessHost::SendOutstandingReplies() {
     create_gpu_memory_buffer_requests_.pop();
     callback.Run(gfx::GpuMemoryBufferHandle());
   }
+
+  while (!create_arc_video_accelerator_channel_requests_.empty()) {
+    CreateArcVideoAcceleratorChannelCallback callback =
+        create_arc_video_accelerator_channel_requests_.front();
+    create_arc_video_accelerator_channel_requests_.pop();
+    callback.Run(IPC::ChannelHandle());
+  }
 }
 
 void GpuProcessHost::BlockLiveOffscreenContexts() {