Support multiple files for AEC dump.

content/renderer/media/webrtc_audio_capturer.cc

Index: content/renderer/media/webrtc_audio_capturer.cc
diff --git a/content/renderer/media/webrtc_audio_capturer.cc b/content/renderer/media/webrtc_audio_capturer.cc
index 2ff0d43a49527d1d245884031051a037aa1fe2cc..6212a8e0ddb8ddf9c876d4e5de4278e446b7c1c4 100644
--- a/content/renderer/media/webrtc_audio_capturer.cc
+++ b/content/renderer/media/webrtc_audio_capturer.cc
@@ -417,9 +417,6 @@ void WebRtcAudioCapturer::Stop() {
   if (audio_device_)
     audio_device_->RemoveAudioCapturer(this);
 
-  // Stop the Aec dump.
-  StopAecDump();
-
   for (TrackList::ItemList::const_iterator it = tracks.begin();
        it != tracks.end();
        ++it) {
@@ -615,15 +612,4 @@ void WebRtcAudioCapturer::SetCapturerSourceForTesting(
                     static_cast<float>(params.sample_rate()));
 }
 
-void WebRtcAudioCapturer::StartAecDump(base::File aec_dump_file) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK(aec_dump_file.IsValid());
-  audio_processor_->StartAecDump(aec_dump_file.Pass());
-}
-
-void WebRtcAudioCapturer::StopAecDump() {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  audio_processor_->StopAecDump();
-}
-
 }  // namespace content