Migrate WTF::Vector::prepend() to ::push_front()

third_party/WebKit/Source/core/animation/css/CSSAnimations.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 149 matching lines @@
   if (!keyframes.isEmpty())
     keyframes.shrink(targetIndex + 1);
 
   // Add 0% and 100% keyframes if absent.
   RefPtr<StringKeyframe> startKeyframe =
       keyframes.isEmpty() ? nullptr : keyframes[0];
   if (!startKeyframe || keyframes[0]->offset() != 0) {
     startKeyframe = StringKeyframe::create();
     startKeyframe->setOffset(0);
     startKeyframe->setEasing(defaultTimingFunction);
-    keyframes.prepend(startKeyframe);
+    keyframes.push_front(startKeyframe);
   }
   RefPtr<StringKeyframe> endKeyframe = keyframes[keyframes.size() - 1];
   if (endKeyframe->offset() != 1) {
     endKeyframe = StringKeyframe::create();
     endKeyframe->setOffset(1);
     endKeyframe->setEasing(defaultTimingFunction);
     keyframes.push_back(endKeyframe);
   }
   DCHECK_GE(keyframes.size(), 2U);
   DCHECK(!keyframes.front()->offset());
@@ skipping 1031 matching lines @@
              isCustomPropertyHandle);
 }
 
 DEFINE_TRACE(CSSAnimations) {
   visitor->trace(m_transitions);
   visitor->trace(m_pendingUpdate);
   visitor->trace(m_runningAnimations);
 }
 
 }  // namespace blink