VideoCaptureInput enforce VideoFrame::render_time to be generated by webrtc clock.

webrtc/video/video_capture_input.h

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef WEBRTC_VIDEO_VIDEO_CAPTURE_INPUT_H_
 #define WEBRTC_VIDEO_VIDEO_CAPTURE_INPUT_H_
 
 #include <vector>
 
 #include "webrtc/base/criticalsection.h"
 #include "webrtc/base/event.h"
 #include "webrtc/base/platform_thread.h"
 #include "webrtc/base/thread_annotations.h"
 #include "webrtc/common_types.h"
 #include "webrtc/engine_configurations.h"
 #include "webrtc/modules/video_capture/video_capture.h"
 #include "webrtc/modules/video_coding/include/video_codec_interface.h"
 #include "webrtc/modules/video_coding/include/video_coding.h"
 #include "webrtc/modules/video_processing/include/video_processing.h"
+#include "webrtc/system_wrappers/include/clock.h"
 #include "webrtc/typedefs.h"
 #include "webrtc/video_send_stream.h"
 
 namespace webrtc {
 
 class Config;
 class OveruseFrameDetector;
 class SendStatisticsProxy;
 class VideoRenderer;
 
@@ skipping 25 matching lines @@
   VideoCaptureCallback* const frame_callback_;
   VideoRenderer* const local_renderer_;
   SendStatisticsProxy* const stats_proxy_;
 
   rtc::PlatformThread encoder_thread_;
   rtc::Event capture_event_;
 
   volatile int stop_;
 
   VideoFrame captured_frame_ GUARDED_BY(crit_);
+  Clock* const clock_;
   // Used to make sure incoming time stamp is increasing for every frame.
   int64_t last_captured_timestamp_;
   // Delta used for translating between NTP and internal timestamps.
   const int64_t delta_ntp_internal_ms_;
 
   OveruseFrameDetector* const overuse_detector_;
 };
 
 }  // namespace internal
 }  // namespace webrtc
 
 #endif  // WEBRTC_VIDEO_VIDEO_CAPTURE_INPUT_H_