Disambiguate LifecycleObserver::contextDestroyed

third_party/WebKit/Source/modules/peerconnection/RTCStatsRequestImpl.cpp

 /*
  * Copyright (C) 2012 Google Inc. 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
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 52 matching lines @@
 }
 
 void RTCStatsRequestImpl::requestSucceeded(RTCStatsResponseBase* response) {
   bool shouldFireCallback =
       m_requester ? m_requester->shouldFireGetStatsCallback() : false;
   if (shouldFireCallback && m_successCallback)
     m_successCallback->handleEvent(static_cast<RTCStatsResponse*>(response));
   clear();
 }
 
-void RTCStatsRequestImpl::contextDestroyed() {
+void RTCStatsRequestImpl::contextDestroyed(ExecutionContext*) {
   clear();
 }
 
 void RTCStatsRequestImpl::clear() {
   m_successCallback.clear();
   m_requester.clear();
 }
 
 DEFINE_TRACE(RTCStatsRequestImpl) {
   visitor->trace(m_successCallback);
   visitor->trace(m_component);
   visitor->trace(m_requester);
   RTCStatsRequest::trace(visitor);
   ContextLifecycleObserver::trace(visitor);
 }
 
 }  // namespace blink