Disambiguate LifecycleObserver::contextDestroyed

third_party/WebKit/Source/modules/mediastream/MediaStreamTrack.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  * Copyright (C) 2011 Ericsson AB. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 248 matching lines @@
 void MediaStreamTrack::propagateTrackEnded() {
   CHECK(!m_isIteratingRegisteredMediaStreams);
   m_isIteratingRegisteredMediaStreams = true;
   for (HeapHashSet<Member<MediaStream>>::iterator iter =
            m_registeredMediaStreams.begin();
        iter != m_registeredMediaStreams.end(); ++iter)
     (*iter)->trackEnded();
   m_isIteratingRegisteredMediaStreams = false;
 }
 
-void MediaStreamTrack::contextDestroyed() {
+void MediaStreamTrack::contextDestroyed(ExecutionContext*) {
   m_stopped = true;
 }
 
 bool MediaStreamTrack::hasPendingActivity() const {
   // If 'ended' listeners exist and the object hasn't yet reached
   // that state, keep the object alive.
   //
   // An otherwise unreachable MediaStreamTrack object in an non-ended
   // state will otherwise indirectly be transitioned to the 'ended' state
   // while finalizing m_component. Which dispatches an 'ended' event,
@@ skipping 34 matching lines @@
 }
 
 DEFINE_TRACE(MediaStreamTrack) {
   visitor->trace(m_registeredMediaStreams);
   visitor->trace(m_component);
   EventTargetWithInlineData::trace(visitor);
   ContextLifecycleObserver::trace(visitor);
 }
 
 }  // namespace blink