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

third_party/WebKit/Source/core/html/HTMLFormControlsCollection.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2010, 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 189 matching lines @@
   HashSet<AtomicString> existingNames;
   unsigned length = this->length();
   for (unsigned i = 0; i < length; ++i) {
     HTMLElement* element = item(i);
     DCHECK(element);
     const AtomicString& idAttribute = element->getIdAttribute();
     if (!idAttribute.isEmpty()) {
       HashSet<AtomicString>::AddResult addResult =
           existingNames.add(idAttribute);
       if (addResult.isNewEntry)
-        names.append(idAttribute);
+        names.push_back(idAttribute);
     }
     const AtomicString& nameAttribute = element->getNameAttribute();
     if (!nameAttribute.isEmpty()) {
       HashSet<AtomicString>::AddResult addResult =
           existingNames.add(nameAttribute);
       if (addResult.isNewEntry)
-        names.append(nameAttribute);
+        names.push_back(nameAttribute);
     }
   }
 }
 
 DEFINE_TRACE(HTMLFormControlsCollection) {
   visitor->trace(m_cachedElement);
   HTMLCollection::trace(visitor);
 }
 
 }  // namespace blink