Migrate WTF::Vector::append() to ::push_back() [part 2 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 92 matching lines @@
   DCHECK(m_animationsNeedingUpdate.contains(animation));
 
   return animation;
 }
 
 HeapVector<Member<Animation>> AnimationTimeline::getAnimations() {
   HeapVector<Member<Animation>> animations;
   for (const auto& animation : m_animations) {
     if (animation->effect() &&
         (animation->effect()->isCurrent() || animation->effect()->isInEffect()))
-      animations.append(animation);
+      animations.push_back(animation);
   }
   std::sort(animations.begin(), animations.end(), compareAnimations);
   return animations;
 }
 
 void AnimationTimeline::wake() {
   m_timing->serviceOnNextFrame();
 }
 
 void AnimationTimeline::serviceAnimations(TimingUpdateReason reason) {
   TRACE_EVENT0("blink", "AnimationTimeline::serviceAnimations");
 
   m_lastCurrentTimeInternal = currentTimeInternal();
 
   HeapVector<Member<Animation>> animations;
   animations.reserveInitialCapacity(m_animationsNeedingUpdate.size());
   for (Animation* animation : m_animationsNeedingUpdate)
-    animations.append(animation);
+    animations.push_back(animation);
 
   std::sort(animations.begin(), animations.end(), Animation::hasLowerPriority);
 
   for (Animation* animation : animations) {
     if (!animation->update(reason))
       m_animationsNeedingUpdate.remove(animation);
   }
 
   DCHECK_EQ(m_outdatedAnimationCount, 0U);
   DCHECK(m_lastCurrentTimeInternal == currentTimeInternal() ||
@@ skipping 175 matching lines @@
 }
 
 DEFINE_TRACE(AnimationTimeline) {
   visitor->trace(m_document);
   visitor->trace(m_timing);
   visitor->trace(m_animationsNeedingUpdate);
   visitor->trace(m_animations);
 }
 
 }  // namespace blink