[Mojo Video Capture] Replace RESOURCE_UTILIZATION with interface ReceiverLoadObserver

services/video_capture/device_media_to_mojo_adapter.cc

 // 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.
 
 #include "services/video_capture/device_media_to_mojo_adapter.h"
 
 #include "base/logging.h"
 #include "media/capture/video/video_capture_buffer_pool_impl.h"
 #include "media/capture/video/video_capture_jpeg_decoder.h"
 #include "services/video_capture/buffer_tracker_factory_impl.h"
@@ skipping 25 matching lines @@
       base::MakeUnique<ReceiverMojoToMediaAdapter>(std::move(receiver));
 
   // Create a dedicated buffer pool for the device usage session.
   const int kMaxBufferCount = 2;
   auto buffer_tracker_factory = base::MakeUnique<BufferTrackerFactoryImpl>();
   scoped_refptr<media::VideoCaptureBufferPool> buffer_pool(
       new media::VideoCaptureBufferPoolImpl(std::move(buffer_tracker_factory),
                                             kMaxBufferCount));
 
   auto device_client = base::MakeUnique<media::VideoCaptureDeviceClient>(
-      std::move(media_receiver), buffer_pool, jpeg_decoder_factory_callback_);
+      std::move(media_receiver), buffer_pool, jpeg_decoder_factory_callback_,
+      base::ThreadTaskRunnerHandle::Get());
 
   device_->AllocateAndStart(params, std::move(device_client));
   device_running_ = true;
 }
 
 void DeviceMediaToMojoAdapter::Stop() {
   if (device_running_ == false)
     return;
   device_->StopAndDeAllocate();
   device_running_ = false;
 }
 
 void DeviceMediaToMojoAdapter::OnClientConnectionErrorOrClose() {
   Stop();
 }
 
 }  // namespace video_capture