Let clients interact with VideoCaptureDeviceClient instead of VideoCaptureDevice

services/video_capture/public/interfaces/video_frame_receiver.mojom

 // 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.
 
 module video_capture.mojom;
 
 import "media/mojo/interfaces/media_types.mojom";
 
 // Callback interface for receiving data and messages from a started
-// VideoCaptureDevice.
-interface VideoCaptureDeviceClient {
-  OnFrameAvailable(media.mojom.VideoFrame frame);
-  OnError(string error);
+// VideoCaptureDeviceProxy.
+interface VideoFrameReceiver {
+  OnIncomingCapturedVideoFrame(media.mojom.VideoFrame frame);
+  OnError();
+  OnLog(string message);
+  OnBufferDestroyed(int32 buffer_id_to_drop);
 };