services/ui: Use a gpu::GpuChannelHost when creating ui::OutputSurface.

content/renderer/render_thread_impl.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/renderer/render_thread_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <utility>
@@ skipping 1800 matching lines @@
   const base::CommandLine& command_line =
       *base::CommandLine::ForCurrentProcess();
   if (command_line.HasSwitch(switches::kDisableGpuCompositing))
     use_software = true;
 
 #if defined(USE_AURA)
   if (GetMojoShellConnection() && !use_software &&
       command_line.HasSwitch(switches::kUseMusInRenderer)) {
     RenderWidgetMusConnection* connection =
         RenderWidgetMusConnection::GetOrCreate(routing_id);
-    return connection->CreateOutputSurface(gpu_service_.get());
+    scoped_refptr<gpu::GpuChannelHost> gpu_channel_host =
+        EstablishGpuChannelSync();
+    return connection->CreateOutputSurface(std::move(gpu_channel_host));
   }
 #endif
 
   uint32_t output_surface_id = g_next_output_surface_id++;
 
   if (command_line.HasSwitch(switches::kEnableVulkan)) {
     scoped_refptr<cc::VulkanContextProvider> vulkan_context_provider =
         cc::VulkanInProcessContextProvider::Create();
     if (vulkan_context_provider) {
       DCHECK(!layout_test_mode());
@@ skipping 397 matching lines @@
       v8_memory_pressure_level == v8::MemoryPressureLevel::kCritical)
     v8_memory_pressure_level = v8::MemoryPressureLevel::kModerate;
 
   blink::mainThreadIsolate()->MemoryPressureNotification(
       v8_memory_pressure_level);
   blink::MemoryPressureNotificationToWorkerThreadIsolates(
       v8_memory_pressure_level);
 }
 
 }  // namespace content