WebmMuxer: add Pause()/Resume() methods and internal time-in-pause

content/renderer/media/media_recorder_handler.cc

 // Copyright 2015 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.
 
 #include "content/renderer/media/media_recorder_handler.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/location.h"
@@ skipping 191 matching lines @@
 }
 
 void MediaRecorderHandler::pause() {
   DCHECK(main_render_thread_checker_.CalledOnValidThread());
   DCHECK(recording_);
   recording_ = false;
   for (const auto& video_recorder : video_recorders_)
     video_recorder->Pause();
   for (const auto& audio_recorder : audio_recorders_)
     audio_recorder->Pause();
+  webm_muxer_->Pause();
 }
 
 void MediaRecorderHandler::resume() {
   DCHECK(main_render_thread_checker_.CalledOnValidThread());
   DCHECK(!recording_);
   recording_ = true;
   for (const auto& video_recorder : video_recorders_)
     video_recorder->Resume();
   for (const auto& audio_recorder : audio_recorders_)
     audio_recorder->Resume();
+  webm_muxer_->Resume();
 }
 
 void MediaRecorderHandler::OnEncodedVideo(
     const scoped_refptr<media::VideoFrame>& video_frame,
     scoped_ptr<std::string> encoded_data,
     TimeTicks timestamp,
     bool is_key_frame) {
   DCHECK(main_render_thread_checker_.CalledOnValidThread());
   if (!webm_muxer_)
     return;
@@ skipping 39 matching lines @@
     recorder->OnData(audio_bus, timestamp);
 }
 
 void MediaRecorderHandler::SetAudioFormatForTesting(
     const media::AudioParameters& params) {
   for (auto* recorder : audio_recorders_)
     recorder->OnSetFormat(params);
 }
 
 }  // namespace content