Migrate WTF::HashSet::add() to ::insert() [part 1 of N]

third_party/WebKit/Source/platform/mediastream/MediaStreamSource.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
@@ skipping 51 matching lines @@
     // Observers may dispatch events which create and add new Observers;
     // take a snapshot so as to safely iterate.
     HeapVector<Member<Observer>> observers;
     copyToVector(m_observers, observers);
     for (auto observer : observers)
       observer->sourceChangedState();
   }
 }
 
 void MediaStreamSource::addObserver(MediaStreamSource::Observer* observer) {
-  m_observers.add(observer);
+  m_observers.insert(observer);
 }
 
 void MediaStreamSource::addAudioConsumer(AudioDestinationConsumer* consumer) {
   ASSERT(m_requiresConsumer);
   MutexLocker locker(m_audioConsumersLock);
-  m_audioConsumers.add(consumer);
+  m_audioConsumers.insert(consumer);
 }
 
 bool MediaStreamSource::removeAudioConsumer(
     AudioDestinationConsumer* consumer) {
   ASSERT(m_requiresConsumer);
   MutexLocker locker(m_audioConsumersLock);
   HeapHashSet<Member<AudioDestinationConsumer>>::iterator it =
       m_audioConsumers.find(consumer);
   if (it == m_audioConsumers.end())
     return false;
@@ skipping 19 matching lines @@
        it != m_audioConsumers.end(); ++it)
     (*it)->consumeAudio(bus, numberOfFrames);
 }
 
 DEFINE_TRACE(MediaStreamSource) {
   visitor->trace(m_observers);
   visitor->trace(m_audioConsumers);
 }
 
 }  // namespace blink