Migrate WTF::Vector::append() to ::push_back() [part 7 of N]

third_party/WebKit/Source/core/html/HTMLCollection.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2011, 2012 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2014 Samsung Electronics. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 134 matching lines @@
     NamedItemCache();
     typedef HeapHashMap<StringImpl*, Member<HeapVector<Member<Element>>>>
         StringToElementsMap;
     static void addElementToMap(StringToElementsMap& map,
                                 const AtomicString& key,
                                 Element* element) {
       Member<HeapVector<Member<Element>>>& vector =
           map.add(key.impl(), nullptr).storedValue->value;
       if (!vector)
         vector = new HeapVector<Member<Element>>;
-      vector->append(element);
+      vector->push_back(element);
     }
 
     StringToElementsMap m_idCache;
     StringToElementsMap m_nameCache;
   };
 
   bool overridesItemAfter() const { return m_overridesItemAfter; }
   virtual Element* virtualItemAfter(Element*) const;
   bool shouldOnlyIncludeDirectChildren() const {
     return m_shouldOnlyIncludeDirectChildren;
@@ skipping 54 matching lines @@
   if (!attrName ||
       shouldInvalidateTypeOnAttributeChange(invalidationType(), *attrName))
     invalidateCache();
   else if (*attrName == HTMLNames::idAttr || *attrName == HTMLNames::nameAttr)
     invalidateIdNameCacheMaps();
 }
 
 }  // namespace blink
 
 #endif  // HTMLCollection_h