[Mojo Video Capture] Adapt video_capture service to refactored video capture stack

services/video_capture/public/cpp/device_to_feedback_observer_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/public/cpp/device_to_feedback_observer_adapter.h"
+
+namespace video_capture {
+
+DeviceToFeedbackObserverAdapter::DeviceToFeedbackObserverAdapter(
+    mojom::DevicePtr device)
+    : device_(std::move(device)) {}
+
+DeviceToFeedbackObserverAdapter::~DeviceToFeedbackObserverAdapter() = default;
+
+void DeviceToFeedbackObserverAdapter::OnUtilizationReport(int frame_feedback_id,
+                                                          double utilization) {
+  device_->OnReceiverReportingUtilization(frame_feedback_id, utilization);
+}
+
+}  // namespace video_capture