Disambiguate LifecycleObserver::contextDestroyed

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

 /*
  * Copyright (C) 2014 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 51 matching lines @@
   return m_resolver->promise();
 }
 
 void MediaDevicesRequest::succeed(const MediaDeviceInfoVector& mediaDevices) {
   if (!getExecutionContext() || !m_resolver)
     return;
 
   m_resolver->resolve(mediaDevices);
 }
 
-void MediaDevicesRequest::contextDestroyed() {
+void MediaDevicesRequest::contextDestroyed(ExecutionContext*) {
   m_controller.clear();
   m_resolver.clear();
 }
 
 DEFINE_TRACE(MediaDevicesRequest) {
   visitor->trace(m_controller);
   visitor->trace(m_resolver);
   ContextLifecycleObserver::trace(visitor);
 }
 
 }  // namespace blink