Migrate WTF::Vector::append() to ::push_back() [part 12 of N]

third_party/WebKit/Source/core/dom/custom/CustomElementReactionStack.cpp

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/dom/custom/CustomElementReactionStack.h"
 
 #include "bindings/core/v8/Microtask.h"
 #include "core/dom/Element.h"
 #include "core/dom/custom/CEReactionsScope.h"
 #include "core/dom/custom/CustomElementReactionQueue.h"
@@ skipping 23 matching lines @@
   visitor->trace(m_backupQueue);
 }
 
 DEFINE_TRACE_WRAPPERS(CustomElementReactionStack) {
   for (auto key : m_map.keys()) {
     visitor->traceWrappers(key);
   }
 }
 
 void CustomElementReactionStack::push() {
-  m_stack.append(nullptr);
+  m_stack.push_back(nullptr);
 }
 
 void CustomElementReactionStack::popInvokingReactions() {
   ElementQueue* queue = m_stack.back();
   if (queue)
     invokeReactions(*queue);
   m_stack.pop_back();
 }
 
 void CustomElementReactionStack::invokeReactions(ElementQueue& queue) {
@@ skipping 11 matching lines @@
     Element* element,
     CustomElementReaction* reaction) {
   enqueue(m_stack.back(), element, reaction);
 }
 
 void CustomElementReactionStack::enqueue(Member<ElementQueue>& queue,
                                          Element* element,
                                          CustomElementReaction* reaction) {
   if (!queue)
     queue = new ElementQueue();
-  queue->append(element);
+  queue->push_back(element);
 
   CustomElementReactionQueue* reactions = m_map.get(element);
   if (!reactions) {
     reactions = new CustomElementReactionQueue();
     m_map.add(TraceWrapperMember<Element>(this, element), reactions);
   }
 
   reactions->add(reaction);
 }
 
@@ skipping 34 matching lines @@
 CustomElementReactionStack*
 CustomElementReactionStackTestSupport::setCurrentForTest(
     CustomElementReactionStack* newStack) {
   Persistent<CustomElementReactionStack>& stack = customElementReactionStack();
   CustomElementReactionStack* oldStack = stack.get();
   stack = newStack;
   return oldStack;
 }
 
 }  // namespace blink