gpu: Replace GpuHostMsg_Initialized with mojom api.

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 189 matching lines @@
                          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);
 
   // Message handlers.
-  void OnInitialized(bool result,
-                     const gpu::GPUInfo& gpu_info,
-                     const gpu::GpuFeatureInfo& gpu_feature_info);
   void OnGpuMemoryBufferCreated(const gfx::GpuMemoryBufferHandle& handle);
 #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);
 
@@ skipping 80 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_