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

third_party/WebKit/Source/core/dom/DatasetDOMStringMap.cpp

 /*
  * Copyright (C) 2010 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 135 matching lines @@
     }
   }
 
   return builder.toAtomicString();
 }
 
 void DatasetDOMStringMap::getNames(Vector<String>& names) {
   AttributeCollection attributes = m_element->attributes();
   for (const Attribute& attr : attributes) {
     if (isValidAttributeName(attr.localName()))
-      names.append(convertAttributeNameToPropertyName(attr.localName()));
+      names.push_back(convertAttributeNameToPropertyName(attr.localName()));
   }
 }
 
 String DatasetDOMStringMap::item(const String& name) {
   AttributeCollection attributes = m_element->attributes();
   for (const Attribute& attr : attributes) {
     if (propertyNameMatchesAttributeName(name, attr.localName()))
       return attr.value();
   }
 
@@ skipping 32 matching lines @@
   }
   return false;
 }
 
 DEFINE_TRACE(DatasetDOMStringMap) {
   visitor->trace(m_element);
   DOMStringMap::trace(visitor);
 }
 
 }  // namespace blink