Fix DCHECKs caused by in-process gpu thread.

content/gpu/gpu_child_thread.cc

 // 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.
 
 #include "content/gpu/gpu_child_thread.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 486 matching lines @@
     if (watchdog_thread_->message_loop())
       watchdog_thread_->PostAcknowledge();
     // Prevent rearming.
     watchdog_thread_->Stop();
   }
 }
 
 void GpuChildThread::OnGpuSwitched() {
   DVLOG(1) << "GPU: GPU has switched";
   // Notify observers in the GPU process.
-  ui::GpuSwitchingManager::GetInstance()->NotifyGpuSwitched();
+  if (!in_browser_process_)
+    ui::GpuSwitchingManager::GetInstance()->NotifyGpuSwitched();
 }
 
 void GpuChildThread::OnEstablishChannel(const EstablishChannelParams& params) {
   if (!gpu_channel_manager_)
     return;
 
   IPC::ChannelHandle channel_handle = gpu_channel_manager_->EstablishChannel(
       params.client_id, params.client_tracing_id, params.preempts,
       params.allow_view_command_buffers, params.allow_real_time_streams);
   media_service_->AddChannel(params.client_id);
@@ skipping 39 matching lines @@
 
 void GpuChildThread::BindProcessControlRequest(
     mojo::InterfaceRequest<mojom::ProcessControl> request) {
   DVLOG(1) << "GPU: Binding ProcessControl request";
   DCHECK(process_control_);
   process_control_bindings_.AddBinding(process_control_.get(),
                                        std::move(request));
 }
 
 }  // namespace content