Remove a level of indirection in HTMLCollection.

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

 /*
  * Copyright (C) 2009, 2011, 2012 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 29 matching lines @@
 HTMLAllCollection::HTMLAllCollection(ContainerNode& node)
     : HTMLCollection(node, DocAll, DoesNotOverrideItemAfter) {}
 
 HTMLAllCollection::~HTMLAllCollection() {}
 
 Element* HTMLAllCollection::namedItemWithIndex(const AtomicString& name,
                                                unsigned index) const {
   updateIdNameCache();
 
   const NamedItemCache& cache = namedItemCache();
-  if (HeapVector<Member<Element>>* elements = cache.getElementsById(name)) {
+  if (const auto* elements = cache.getElementsById(name)) {
     if (index < elements->size())
       return elements->at(index);
     index -= elements->size();
   }
 
-  if (HeapVector<Member<Element>>* elements = cache.getElementsByName(name)) {
+  if (const auto* elements = cache.getElementsByName(name)) {
     if (index < elements->size())
       return elements->at(index);
   }
 
-  return 0;
+  return nullptr;
 }
 
 void HTMLAllCollection::namedGetter(const AtomicString& name,
                                     NodeListOrElement& returnValue) {
   HeapVector<Member<Element>> namedItems;
   this->namedItems(name, namedItems);
 
   if (!namedItems.size())
     return;
 
   if (namedItems.size() == 1) {
     returnValue.setElement(namedItems.at(0));
     return;
   }
 
   // FIXME: HTML5 specification says this should be a HTMLCollection.
   // http://www.whatwg.org/specs/web-apps/current-work/multipage/common-dom-interfaces.html#htmlallcollection
   returnValue.setNodeList(StaticElementList::adopt(namedItems));
 }
 
 }  // namespace blink