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

third_party/WebKit/Source/core/animation/AnimationTimeline.cpp

 /*
  * Copyright (C) 2013 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 71 matching lines @@
   DCHECK(document);
 }
 
 bool AnimationTimeline::isActive() {
   return m_document && m_document->page();
 }
 
 void AnimationTimeline::animationAttached(Animation& animation) {
   DCHECK_EQ(animation.timeline(), this);
   DCHECK(!m_animations.contains(&animation));
-  m_animations.add(&animation);
+  m_animations.insert(&animation);
 }
 
 Animation* AnimationTimeline::play(AnimationEffectReadOnly* child) {
   if (!m_document)
     return nullptr;
 
   Animation* animation = Animation::create(child, this);
   DCHECK(m_animations.contains(animation));
 
   animation->play();
@@ skipping 171 matching lines @@
 }
 
 void AnimationTimeline::clearOutdatedAnimation(Animation* animation) {
   DCHECK(!animation->outdated());
   m_outdatedAnimationCount--;
 }
 
 void AnimationTimeline::setOutdatedAnimation(Animation* animation) {
   DCHECK(animation->outdated());
   m_outdatedAnimationCount++;
-  m_animationsNeedingUpdate.add(animation);
+  m_animationsNeedingUpdate.insert(animation);
   if (isActive() && !m_document->page()->animator().isServicingAnimations())
     m_timing->serviceOnNextFrame();
 }
 
 void AnimationTimeline::setPlaybackRate(double playbackRate) {
   if (!isActive())
     return;
   double currentTime = currentTimeInternal();
   m_playbackRate = playbackRate;
   m_zeroTime = playbackRate == 0 ? currentTime
@@ skipping 22 matching lines @@
 }
 
 DEFINE_TRACE(AnimationTimeline) {
   visitor->trace(m_document);
   visitor->trace(m_timing);
   visitor->trace(m_animationsNeedingUpdate);
   visitor->trace(m_animations);
 }
 
 }  // namespace blink