Fix WebrtcVideoStream to handle failed capture requests.

remoting/protocol/webrtc_video_stream.h

Index: remoting/protocol/webrtc_video_stream.h
diff --git a/remoting/protocol/webrtc_video_stream.h b/remoting/protocol/webrtc_video_stream.h
index 6d1d1c67250ee704937d3843fb9d888ec1e5cb4a..2e7043682409c1f611f7d1ed97ff8a026b87fd58 100644
--- a/remoting/protocol/webrtc_video_stream.h
+++ b/remoting/protocol/webrtc_video_stream.h
@@ -90,6 +90,11 @@ class WebrtcVideoStream : public VideoStream,
 
   HostVideoStatsDispatcher video_stats_dispatcher_;
 
+  // In case when the capturer failed to capture a frame the corresponding event
+  // timestamps are saved in |next_frame_input_event_timestamps_| to be used for
+  // the following frame.
+  InputEventTimestamps next_frame_input_event_timestamps_;
+
   // Timestamps for the frame that's being captured.
   std::unique_ptr<FrameTimestamps> captured_frame_timestamps_;