[Mojo Video Capture] Replace RESOURCE_UTILIZATION with interface ReceiverLoadObserver

services/video_capture/device_media_to_mojo_adapter.cc

Index: services/video_capture/device_media_to_mojo_adapter.cc
diff --git a/services/video_capture/device_media_to_mojo_adapter.cc b/services/video_capture/device_media_to_mojo_adapter.cc
index 4ee48082e0b958105c031143758a0ed40c91aeb1..346a8f997bd231fc2a509e9ef785ea86a05bff41 100644
--- a/services/video_capture/device_media_to_mojo_adapter.cc
+++ b/services/video_capture/device_media_to_mojo_adapter.cc
@@ -43,7 +43,8 @@ void DeviceMediaToMojoAdapter::Start(const CaptureSettings& requested_settings,
                                             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;