services/ui: Get rid of IPC::ChannelHandle type converter

services/ui/gpu/gpu_service_mus.h

 // Copyright 2016 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 SERVICES_UI_GPU_GPU_SERVICE_MUS_H_
 #define SERVICES_UI_GPU_GPU_SERVICE_MUS_H_
 
 #include "base/callback.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/non_thread_safe.h"
@@ skipping 33 matching lines @@
 
 class MusGpuMemoryBufferManager;
 
 // TODO(fsamuel): GpuServiceMus is intended to be the Gpu thread within Mus.
 // Similar to GpuChildThread, it is a GpuChannelManagerDelegate and will have a
 // GpuChannelManager.
 class GpuServiceMus : public gpu::GpuChannelManagerDelegate,
                       public gpu::GpuChannelHostFactory,
                       public base::NonThreadSafe {
  public:
-  typedef base::Callback<void(int client_id, const IPC::ChannelHandle&)>
+  typedef base::Callback<void(int client_id, IPC::ChannelHandle*)>
       EstablishGpuChannelCallback;
   void EstablishGpuChannel(uint64_t client_tracing_id,
                            bool preempts,
                            bool allow_view_command_buffers,
                            bool allow_real_time_streams,
                            const EstablishGpuChannelCallback& callback);
   gfx::GpuMemoryBufferHandle CreateGpuMemoryBuffer(
       gfx::GpuMemoryBufferId id,
       const gfx::Size& size,
       gfx::BufferFormat format,
@@ skipping 99 matching lines @@
 
   // Information about the GPU, such as device and vendor ID.
   gpu::GPUInfo gpu_info_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuServiceMus);
 };
 
 }  // namespace ui
 
 #endif  // SERVICES_UI_GPU_GPU_SERVICE_MUS_H_