gpu: Use mus gpu interface in non-mus chrome.

content/gpu/gpu_child_thread.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_GPU_GPU_CHILD_THREAD_H_
 #define CONTENT_GPU_GPU_CHILD_THREAD_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <queue>
 #include <string>
 
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/metrics/field_trial.h"
 #include "base/time/time.h"
 #include "build/build_config.h"
 #include "content/child/child_thread_impl.h"
+#include "content/common/associated_interface_registry_impl.h"
 #include "gpu/command_buffer/service/gpu_preferences.h"
 #include "gpu/config/gpu_info.h"
 #include "gpu/ipc/service/gpu_channel.h"
 #include "gpu/ipc/service/gpu_channel_manager.h"
 #include "gpu/ipc/service/gpu_channel_manager_delegate.h"
 #include "gpu/ipc/service/gpu_config.h"
 #include "gpu/ipc/service/x_util.h"
+#include "mojo/public/cpp/bindings/associated_binding_set.h"
 #include "mojo/public/cpp/bindings/binding_set.h"
 #include "services/service_manager/public/interfaces/service_factory.mojom.h"
+#include "services/ui/gpu/gpu_service.h"
 #include "services/ui/gpu/interfaces/gpu_main.mojom.h"
 #include "ui/gfx/native_widget_types.h"
 
 namespace gpu {
 class GpuMemoryBufferFactory;
 class GpuWatchdogThread;
-class SyncPointManager;
-}
-
-namespace media {
-class MediaGpuChannelManager;
 }
 
 namespace sandbox {
 class TargetServices;
 }
 
 namespace content {
 class GpuServiceFactory;
 struct EstablishChannelParams;
 
 // The main thread of the GPU child process. There will only ever be one of
 // these per process. It does process initialization and shutdown. It forwards
 // IPC messages to gpu::GpuChannelManager, which is responsible for issuing
 // rendering commands to the GPU.
 class GpuChildThread : public ChildThreadImpl,
-                       public gpu::GpuChannelManagerDelegate,
+                       public ui::mojom::GpuMain,
                        public base::FieldTrialList::Observer {
  public:
   struct LogMessage {
     int severity;
     std::string header;
     std::string message;
   };
   typedef std::queue<LogMessage> DeferredMessages;
 
   GpuChildThread(std::unique_ptr<gpu::GpuWatchdogThread> gpu_watchdog_thread,
                  bool dead_on_arrival,
                  const gpu::GPUInfo& gpu_info,
                  const DeferredMessages& deferred_messages,
                  gpu::GpuMemoryBufferFactory* gpu_memory_buffer_factory);
 
   GpuChildThread(const InProcessChildThreadParams& params,
                  const gpu::GPUInfo& gpu_info,
                  gpu::GpuMemoryBufferFactory* gpu_memory_buffer_factory);
 
   ~GpuChildThread() override;
 
   void Shutdown() override;
 
   void Init(const base::Time& process_start_time);
 
-  gpu::GpuWatchdogThread* watchdog_thread() { return watchdog_thread_.get(); }
+  gpu::GpuWatchdogThread* watchdog_thread() {
+    return gpu_service_->watchdog_thread();
+  }
 
  private:
   void CreateGpuMainService(ui::mojom::GpuMainAssociatedRequest request);
 
   // ChildThreadImpl:.
   bool Send(IPC::Message* msg) override;
   bool OnControlMessageReceived(const IPC::Message& msg) override;
   bool OnMessageReceived(const IPC::Message& msg) override;
 
-  // gpu::GpuChannelManagerDelegate:
-  void SetActiveURL(const GURL& url) override;
-  void DidCreateOffscreenContext(const GURL& active_url) override;
-  void DidDestroyChannel(int client_id) override;
-  void DidDestroyOffscreenContext(const GURL& active_url) override;
-  void DidLoseContext(bool offscreen,
-                      gpu::error::ContextLostReason reason,
-                      const GURL& active_url) override;
-#if defined(OS_WIN)
-  void SendAcceleratedSurfaceCreatedChildWindow(
-      gpu::SurfaceHandle parent_window,
-      gpu::SurfaceHandle child_window) override;
-#endif
-  void StoreShaderToDisk(int32_t client_id,
-                         const std::string& key,
-                         const std::string& shader) override;
+  // IPC::Listener implementation via ChildThreadImpl:
+  void OnAssociatedInterfaceRequest(
+      const std::string& name,
+      mojo::ScopedInterfaceEndpointHandle handle) override;
+
+  // ui::mojom::GpuMain:
+  void CreateGpuService(ui::mojom::GpuServiceRequest request,
+                        ui::mojom::GpuHostPtr gpu_host,
+                        const gpu::GpuPreferences& preferences) override;
+  void CreateDisplayCompositor(
+      cc::mojom::DisplayCompositorRequest request,
+      cc::mojom::DisplayCompositorClientPtr client) override;
 
   // base::FieldTrialList::Observer:
   void OnFieldTrialGroupFinalized(const std::string& trial_name,
                                   const std::string& group_name) override;
 
   // Message handlers.
-  void OnInitialize(const gpu::GpuPreferences& gpu_preferences);
   void OnFinalize();
   void OnCollectGraphicsInfo();
   void OnGetVideoMemoryUsageStats();
   void OnSetVideoMemoryWindowCount(uint32_t window_count);
 
   void OnClean();
   void OnCrash();
   void OnHang();
   void OnGpuSwitched();
 
   void OnEstablishChannel(const EstablishChannelParams& params);
   void OnCloseChannel(int32_t client_id);
   void OnLoadedShader(const std::string& shader);
   void OnDestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
                                 int client_id,
                                 const gpu::SyncToken& sync_token);
 #if defined(OS_ANDROID)
   void OnWakeUpGpu();
   void OnDestroyingVideoSurface(int surface_id);
 #endif
-  void OnLoseAllContexts();
 
   void BindServiceFactoryRequest(
       service_manager::mojom::ServiceFactoryRequest request);
 
+  gpu::GpuChannelManager* gpu_channel_manager() {
+    return gpu_service_->gpu_channel_manager();
+  }
+
   // Set this flag to true if a fatal error occurred before we receive the
   // OnInitialize message, in which case we just declare ourselves DOA.
   const bool dead_on_arrival_;
   base::Time process_start_time_;
-  std::unique_ptr<gpu::GpuWatchdogThread> watchdog_thread_;
 
 #if defined(OS_WIN)
   // Windows specific client sandbox interface.
   sandbox::TargetServices* target_services_;
 #endif
 
-  // Can be null if overridden by ContentGpuClient.
-  std::unique_ptr<gpu::SyncPointManager> owned_sync_point_manager_;
-
-  std::unique_ptr<gpu::GpuChannelManager> gpu_channel_manager_;
-
-  std::unique_ptr<media::MediaGpuChannelManager> media_gpu_channel_manager_;
-
   // Information about the GPU, such as device and vendor ID.
   gpu::GPUInfo gpu_info_;
 
   // Error messages collected in gpu_main() before the thread is created.
   DeferredMessages deferred_messages_;
 
   // Whether the GPU thread is running in the browser process.
   bool in_browser_process_;
 
-  // The gpu::GpuMemoryBufferFactory instance used to allocate GpuMemoryBuffers.
-  gpu::GpuMemoryBufferFactory* const gpu_memory_buffer_factory_;
-
   // ServiceFactory for service_manager::Service hosting.
   std::unique_ptr<GpuServiceFactory> service_factory_;
 
   // Bindings to the service_manager::mojom::ServiceFactory impl.
   mojo::BindingSet<service_manager::mojom::ServiceFactory>
       service_factory_bindings_;
 
+  AssociatedInterfaceRegistryImpl associated_interfaces_;
+  std::unique_ptr<ui::GpuService> gpu_service_;
+  mojo::AssociatedBinding<ui::mojom::GpuMain> gpu_main_binding_;
+
   DISALLOW_COPY_AND_ASSIGN(GpuChildThread);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_GPU_GPU_CHILD_THREAD_H_