Implement GpuArcVideoService for arc video accelerator

content/browser/gpu/gpu_process_host.h

 // 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.
 
 #ifndef CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_H_
 #define CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_H_
 
 #include <map>
 #include <queue>
 #include <set>
@@ skipping 56 matching lines @@
 
   typedef base::Callback<void(const IPC::ChannelHandle&, const gpu::GPUInfo&)>
       EstablishChannelCallback;
 
   typedef base::Callback<void(CreateCommandBufferResult)>
       CreateCommandBufferCallback;
 
   typedef base::Callback<void(const gfx::GpuMemoryBufferHandle& handle)>
       CreateGpuMemoryBufferCallback;
 
+  typedef base::Callback<void(const IPC::ChannelHandle&)>
+      CreateArcVideoAcceleratorChannelCallback;
+
   static bool gpu_enabled() { return gpu_enabled_; }
   static int gpu_crash_count() { return gpu_crash_count_; }
 
   // Creates a new GpuProcessHost or gets an existing one, resulting in the
   // launching of a GPU process if required.  Returns null on failure. It
   // is not safe to store the pointer once control has returned to the message
   // loop as it can be destroyed. Instead store the associated GPU host ID.
   // This could return NULL if GPU access is not allowed (blacklisted).
   CONTENT_EXPORT static GpuProcessHost* Get(GpuProcessKind kind,
                                             CauseForGpuLaunch cause);
@@ skipping 60 matching lines @@
       const gfx::Size& size,
       gfx::BufferFormat format,
       int client_id,
       const CreateGpuMemoryBufferCallback& callback);
 
   // Tells the GPU process to destroy GPU memory buffer.
   void DestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
                               int client_id,
                               const gpu::SyncToken& sync_token);
 
+  void CreateArcVideoAcceleratorChannel(

[Pawel Osciak, 2015/12/16 10:17:58]

Please document.

[kcwu, 2015/12/16 14:05:33]

Done.

+      const CreateArcVideoAcceleratorChannelCallback& callback);
+
   // What kind of GPU process, e.g. sandboxed or unsandboxed.
   GpuProcessKind kind();
 
   // Forcefully terminates the GPU process.
   void ForceShutdown();
 
   // Asks the GPU process to stop by itself.
   void StopGpuProcess();
 
   void BeginFrameSubscription(
@@ skipping 22 matching lines @@
   void OnProcessLaunched() override;
   void OnProcessLaunchFailed() override;
   void OnProcessCrashed(int exit_code) override;
   ServiceRegistry* GetServiceRegistry() override;
 
   // Message handlers.
   void OnInitialized(bool result, const gpu::GPUInfo& gpu_info);
   void OnChannelEstablished(const IPC::ChannelHandle& channel_handle);
   void OnCommandBufferCreated(CreateCommandBufferResult result);
   void OnGpuMemoryBufferCreated(const gfx::GpuMemoryBufferHandle& handle);
+  void OnArcVideoAcceleratorChannelCreated(const IPC::ChannelHandle& handle);
   void OnDidCreateOffscreenContext(const GURL& url);
   void OnDidLoseContext(bool offscreen,
                         gpu::error::ContextLostReason reason,
                         const GURL& url);
   void OnDidDestroyOffscreenContext(const GURL& url);
   void OnGpuMemoryUmaStatsReceived(const GPUMemoryUmaStats& stats);
 #if defined(OS_MACOSX)
   void OnAcceleratedSurfaceBuffersSwapped(const IPC::Message& message);
 #endif
 
@@ skipping 19 matching lines @@
   // These are the channel requests that we have already sent to
   // the GPU process, but haven't heard back about yet.
   std::queue<EstablishChannelCallback> channel_requests_;
 
   // The pending create command buffer requests we need to reply to.
   std::queue<CreateCommandBufferCallback> create_command_buffer_requests_;
 
   // The pending create gpu memory buffer requests we need to reply to.
   std::queue<CreateGpuMemoryBufferCallback> create_gpu_memory_buffer_requests_;
 
+  // The pending create arc video accelerator channel requests we need to reply
+  // to.
+  std::queue<CreateArcVideoAcceleratorChannelCallback>
+      create_arc_video_accelerator_channel_requests_;
+
   // Qeueud messages to send when the process launches.
   std::queue<IPC::Message*> queued_messages_;
 
   // Whether the GPU process is valid, set to false after Send() failed.
   bool valid_;
 
   // Whether we are running a GPU thread inside the browser process instead
   // of a separate GPU process.
   bool in_process_;
 
@@ skipping 51 matching lines @@
   // Browser-side Mojo endpoint which sets up a Mojo channel with the child
   // process and contains the browser's ServiceRegistry.
   scoped_ptr<MojoApplicationHost> mojo_application_host_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuProcessHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_H_