gpu: Replace GpuMsg_Finalize ipc with equivalent mojom api

content/browser/gpu/gpu_process_host_ui_shim.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_UI_SHIM_H_
 #define CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_UI_SHIM_H_
 
 // This class lives on the UI thread and supports classes like the
 // BackingStoreProxy, which must live on the UI thread. The IO thread
 // portion of this class, the GpuProcessHost, is responsible for
@@ skipping 33 matching lines @@
   // Destroy the GpuProcessHostUIShim with the given host ID. This can only
   // be called on the UI thread. Only the GpuProcessHost should destroy the
   // UI shim.
   static void Destroy(int host_id, const std::string& message);
 
   // Destroy all remaining GpuProcessHostUIShims.
   CONTENT_EXPORT static void DestroyAll();
 
   CONTENT_EXPORT static GpuProcessHostUIShim* FromID(int host_id);
 
-  // Stops the GPU process.
-  CONTENT_EXPORT void StopGpuProcess(const base::Closure& callback);
-
   // IPC::Listener implementation.
   // The GpuProcessHost causes this to be called on the UI thread to
   // dispatch the incoming messages from the GPU process, which are
   // actually received on the IO thread.
   bool OnMessageReceived(const IPC::Message& message) override;
 
  private:
   explicit GpuProcessHostUIShim(int host_id);
   ~GpuProcessHostUIShim() override;
 
   // Message handlers.
   bool OnControlMessageReceived(const IPC::Message& message);
   void OnLogMessage(int level, const std::string& header,
       const std::string& message);
   void OnGraphicsInfoCollected(const gpu::GPUInfo& gpu_info);
 
   // The serial number of the GpuProcessHost / GpuProcessHostUIShim pair.
   int host_id_;
-  base::Closure close_callback_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_UI_SHIM_H_