Migrate WTF::Vector::append() to ::push_back() [part 4 of N]

third_party/WebKit/Source/core/dom/custom/CustomElementDefinition.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/CustomElementDefinition.h"
 
 #include "core/dom/Attr.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/custom/CustomElement.h"
 #include "core/dom/custom/CustomElementAdoptedCallbackReaction.h"
@@ skipping 108 matching lines @@
   // definition.
   enqueueUpgradeReaction(element);
   return element;
 }
 
 CustomElementDefinition::ConstructionStackScope::ConstructionStackScope(
     CustomElementDefinition* definition,
     Element* element)
     : m_constructionStack(definition->m_constructionStack), m_element(element) {
   // Push the construction stack.
-  m_constructionStack.append(element);
+  m_constructionStack.push_back(element);
   m_depth = m_constructionStack.size();
 }
 
 CustomElementDefinition::ConstructionStackScope::~ConstructionStackScope() {
   // Pop the construction stack.
   DCHECK(!m_constructionStack.back() ||
          m_constructionStack.back() == m_element);
   DCHECK_EQ(m_constructionStack.size(), m_depth);  // It's a *stack*.
   m_constructionStack.pop_back();
 }
@@ skipping 72 matching lines @@
     element->synchronizeAttribute(name);
   for (const auto& attribute : element->attributesWithoutUpdate()) {
     if (hasAttributeChangedCallback(attribute.name())) {
       enqueueAttributeChangedCallback(element, attribute.name(), nullAtom,
                                       attribute.value());
     }
   }
 }
 
 }  // namespace blink