Update MediaStreamTrack::Stop to latest draft.

content/renderer/media/webrtc_local_audio_track.cc

Index: content/renderer/media/webrtc_local_audio_track.cc
diff --git a/content/renderer/media/webrtc_local_audio_track.cc b/content/renderer/media/webrtc_local_audio_track.cc
index d1b22234978b0da62a213448d0441989aede39a6..90c1ab6cdaeb688b08dee1b1868e4845a802c2fe 100644
--- a/content/renderer/media/webrtc_local_audio_track.cc
+++ b/content/renderer/media/webrtc_local_audio_track.cc
@@ -38,8 +38,8 @@ WebRtcLocalAudioTrack::WebRtcLocalAudioTrack(
 WebRtcLocalAudioTrack::~WebRtcLocalAudioTrack() {
   DCHECK(main_render_thread_checker_.CalledOnValidThread());
   DVLOG(1) << "WebRtcLocalAudioTrack::~WebRtcLocalAudioTrack()";
-  // Users might not call Stop() on the track.
-  Stop();
+  // Users might not call StopTrack() on the track.
+  StopTrack();
 }
 
 void WebRtcLocalAudioTrack::Capture(const int16* audio_data,
@@ -215,7 +215,7 @@ void WebRtcLocalAudioTrack::Start() {
   }
 }
 
-void WebRtcLocalAudioTrack::Stop() {
+void WebRtcLocalAudioTrack::StopTrack() {
   DCHECK(main_render_thread_checker_.CalledOnValidThread());
   DVLOG(1) << "WebRtcLocalAudioTrack::Stop()";
   if (!capturer_.get() && !webaudio_source_.get())