Let clients interact with VideoCaptureDeviceClient instead of VideoCaptureDevice

content/browser/media/capture/web_contents_video_capture_device_unittest.cc

Index: content/browser/media/capture/web_contents_video_capture_device_unittest.cc
diff --git a/content/browser/media/capture/web_contents_video_capture_device_unittest.cc b/content/browser/media/capture/web_contents_video_capture_device_unittest.cc
index 922ce7c835de6b16022b40a45b76972ee3201bf0..1f0583d0be85e854689ec39d96e53e49e01a4943 100644
--- a/content/browser/media/capture/web_contents_video_capture_device_unittest.cc
+++ b/content/browser/media/capture/web_contents_video_capture_device_unittest.cc
@@ -448,6 +448,12 @@ class StubClient : public media::VideoCaptureDevice::Client {
       return base::FileDescriptor();
     }
 #endif
+    bool IsBackedByVideoFrame() const override {
+      return buffer_handle_->IsBackedByVideoFrame();
+    }
+    scoped_refptr<media::VideoFrame> GetVideoFrame() override {
+      return buffer_handle_->GetVideoFrame();
+    }
 
    private:
     ~AutoReleaseBuffer() override { pool_->RelinquishProducerReservation(id_); }