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

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

 /*
  * Copyright (C) 2006, 2011, 2012 Apple Computer, Inc.
  * 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
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 37 matching lines @@
   HashSet<AtomicString> existingNames;
   unsigned length = this->length();
   for (unsigned i = 0; i < length; ++i) {
     Element* 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);
     }
   }
 }
 
 HTMLOptionsCollection* HTMLOptionsCollection::create(ContainerNode& select,
                                                      CollectionType) {
   return new HTMLOptionsCollection(select);
 }
 
 void HTMLOptionsCollection::add(
@@ skipping 45 matching lines @@
   HTMLSelectElement& base = toHTMLSelectElement(ownerNode());
   if (!value) {  // undefined or null
     base.remove(index);
     return true;
   }
   base.setOption(index, value, exceptionState);
   return true;
 }
 
 }  // namespace blink