blink: Rename platform/ methods to prefix with get when they collide.

content/renderer/media/media_stream_audio_track.cc

Index: content/renderer/media/media_stream_audio_track.cc
diff --git a/content/renderer/media/media_stream_audio_track.cc b/content/renderer/media/media_stream_audio_track.cc
index 31c12a04bc622fd836c1fba9c791eb90271d5f83..9eee57d61428d6146bda28f8c930294a8f84857e 100644
--- a/content/renderer/media/media_stream_audio_track.cc
+++ b/content/renderer/media/media_stream_audio_track.cc
@@ -31,7 +31,7 @@ MediaStreamAudioTrack* MediaStreamAudioTrack::From(
       track.source().getType() != blink::WebMediaStreamSource::TypeAudio) {
     return nullptr;
   }
-  return static_cast<MediaStreamAudioTrack*>(track.extraData());
+  return static_cast<MediaStreamAudioTrack*>(track.getExtraData());
 }
 
 void MediaStreamAudioTrack::Start(const base::Closure& stop_callback) {