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

services/video_capture/test/mock_device_factory.cc

Index: services/video_capture/test/mock_device_factory.cc
diff --git a/services/video_capture/test/mock_device_factory.cc b/services/video_capture/test/mock_device_factory.cc
index 8fe10777a5fe125f199056825add7aad03ff3dca..dd9a7875495f1cfdadeef2ffe6a72fbaa3590b68 100644
--- a/services/video_capture/test/mock_device_factory.cc
+++ b/services/video_capture/test/mock_device_factory.cc
@@ -8,11 +8,13 @@
 namespace {
 
 // Report a single hard-coded supported format to clients.
-media::VideoCaptureFormat kSupportedFormat(gfx::Size(),
+media::VideoCaptureFormat kSupportedFormat(gfx::Size(640, 480),
                                            25.0f,
                                            media::PIXEL_FORMAT_I420,
                                            media::PIXEL_STORAGE_CPU);
 
+// Wraps a raw pointer to a media::VideoCaptureDevice and allows us to
+// create a std::unique_ptr<media::VideoCaptureDevice> that delegates to it.
 class RawPointerVideoCaptureDevice : public media::VideoCaptureDevice {
  public:
   explicit RawPointerVideoCaptureDevice(media::VideoCaptureDevice* device)
@@ -35,6 +37,9 @@ class RawPointerVideoCaptureDevice : public media::VideoCaptureDevice {
   void TakePhoto(TakePhotoCallback callback) override {
     device_->TakePhoto(std::move(callback));
   }
+  void OnUtilizationReport(int frame_feedback_id, double utilization) override {
+    device_->OnUtilizationReport(frame_feedback_id, utilization);
+  }
 
  private:
   media::VideoCaptureDevice* device_;