GpuProcessHost: setup ipc to propagate supported GpuMemoryBufferAttribs

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 <stdint.h>
 
 #include <map>
@@ skipping 69 matching lines @@
                           EstablishChannelStatus status)>;
 
   enum class BufferCreationStatus {
     GPU_HOST_INVALID,
     SUCCESS,
   };
   using CreateGpuMemoryBufferCallback =
       base::Callback<void(const gfx::GpuMemoryBufferHandle& handle,
                           BufferCreationStatus status)>;
 
+  typedef base::Callback<void(const gfx::GpuMemoryBufferAttribVector&)>
+      GetGpuMemoryBufferAttribsCallback;
   static bool gpu_enabled() { return gpu_enabled_; }
   static int gpu_crash_count() { return gpu_crash_count_; }
 
   // Creates a new GpuProcessHost (if |force_create| is turned on) 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(
@@ skipping 40 matching lines @@
                              gfx::BufferUsage usage,
                              int client_id,
                              gpu::SurfaceHandle surface_handle,
                              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 GetGpuMemoryBufferAttribs(
+      const GetGpuMemoryBufferAttribsCallback& callback);
 #if defined(OS_ANDROID)
   // Tells the GPU process that the given surface is being destroyed so that it
   // can stop using it.
   void SendDestroyingVideoSurface(int surface_id, const base::Closure& done_cb);
 #endif
 
   // What kind of GPU process, e.g. sandboxed or unsandboxed.
   GpuProcessKind kind();
 
   // Forcefully terminates the GPU process.
@@ skipping 39 matching lines @@
                          const std::string& key,
                          const std::string& shader) override;
   void RecordLogMessage(int32_t severity,
                         const std::string& header,
                         const std::string& message) override;
 
   void OnChannelEstablished(int client_id,
                             const EstablishChannelCallback& callback,
                             mojo::ScopedMessagePipeHandle channel_handle);
   void OnGpuMemoryBufferCreated(const gfx::GpuMemoryBufferHandle& handle);
-
+  void OnGpuMemoryBufferAttribsReceived(
+      const gfx::GpuMemoryBufferAttribVector& supported_attribs);
   // Message handlers.
 #if defined(OS_ANDROID)
   void OnDestroyingVideoSurfaceAck();
 #endif
   void OnFieldTrialActivated(const std::string& trial_name);
 
   void CreateChannelCache(int32_t client_id);
 
   bool LaunchGpuProcess(gpu::GpuPreferences* gpu_preferences);
 
   void SendOutstandingReplies();
 
   void BlockLiveOffscreenContexts();
 
   // Update GPU crash counters.  Disable GPU if crash limit is reached.
   void RecordProcessCrash();
 
   std::string GetShaderPrefixKey(const std::string& shader);
 
   // The serial number of the GpuProcessHost / GpuProcessHostUIShim pair.
   int host_id_;
 
   // 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 gpu memory buffer requests we need to reply to.
   std::queue<CreateGpuMemoryBufferCallback> create_gpu_memory_buffer_requests_;
 
+  // The pending get attribs requests we need to reply to.
+  std::queue<GetGpuMemoryBufferAttribsCallback>
+      get_gpu_memory_buffer_attribs_requests_;
+
   // A callback to signal the completion of a SendDestroyingVideoSurface call.
   base::Closure send_destroying_video_surface_done_cb_;
 
   // 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
@@ skipping 51 matching lines @@
   gpu::GpuProcessHostActivityFlags activity_flags_;
 
   base::WeakPtrFactory<GpuProcessHost> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuProcessHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_H_