gpu: Replace GpuMsg_GpuSwitched with mojom api.

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>
@@ skipping 69 matching lines @@
                  bool dead_on_arrival,
                  bool in_browser_process,
                  const gpu::GPUInfo& gpu_info,
                  const gpu::GpuFeatureInfo& gpu_feature_info,
                  gpu::GpuMemoryBufferFactory* gpu_memory_buffer_factory);
 
   void CreateGpuMainService(ui::mojom::GpuMainAssociatedRequest request);
 
   // ChildThreadImpl:.
   bool Send(IPC::Message* msg) override;
-  bool OnControlMessageReceived(const IPC::Message& msg) 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,
                         mojo::ScopedSharedBufferHandle activity_flags) 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 OnGpuSwitched();
-
   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_;
@@ skipping 14 matching lines @@
   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_