Use an AtomicString as key in DocumentOrderedMap

Source/core/dom/DocumentOrderedMap.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 53 matching lines @@
 PassOwnPtrWillBeRawPtr<DocumentOrderedMap> DocumentOrderedMap::create()
 {
     return adoptPtrWillBeNoop(new DocumentOrderedMap());
 }
 
 void DocumentOrderedMap::add(const AtomicString& key, Element* element)
 {
     ASSERT(key);
     ASSERT(element);
 
-    Map::AddResult addResult = m_map.add(key.impl(), adoptPtrWillBeNoop(new MapEntry(element)));
+    Map::AddResult addResult = m_map.add(key, adoptPtrWillBeNoop(new MapEntry(element)));
     if (addResult.isNewEntry)
         return;
 
     OwnPtrWillBeMember<MapEntry>& entry = addResult.storedValue->value;
     ASSERT(entry->count);
     entry->element = nullptr;
     entry->count++;
     entry->orderedList.clear();
 }
 
 void DocumentOrderedMap::remove(const AtomicString& key, Element* element)
 {
     ASSERT(key);
     ASSERT(element);
 
-    Map::iterator it = m_map.find(key.impl());
+    Map::iterator it = m_map.find(key);
     if (it == m_map.end())
         return;
 
     OwnPtrWillBeMember<MapEntry>& entry = it->value;
     ASSERT(entry->count);
     if (entry->count == 1) {
         ASSERT(!entry->element || entry->element == element);
         m_map.remove(it);
     } else {
         if (entry->element == element) {
             ASSERT(entry->orderedList.isEmpty() || entry->orderedList.first() == element);
             entry->element = entry->orderedList.size() > 1 ? entry->orderedList[1] : nullptr;
         }
         entry->count--;
         entry->orderedList.clear();
     }
 }
 
 template<bool keyMatches(const AtomicString&, const Element&)>
 inline Element* DocumentOrderedMap::get(const AtomicString& key, const TreeScope* scope) const
 {
     ASSERT(key);
     ASSERT(scope);
 
-    MapEntry* entry = m_map.get(key.impl());
+    MapEntry* entry = m_map.get(key);
     if (!entry)
         return 0;
 
     ASSERT(entry->count);
     if (entry->element)
         return entry->element;
 
     // We know there's at least one node that matches; iterate to find the first one.
     for (Element* element = ElementTraversal::firstWithin(scope->rootNode()); element; element = ElementTraversal::next(*element)) {
         if (!keyMatches(key, *element))
             continue;
         entry->element = element;
         return element;
     }
     ASSERT_NOT_REACHED();
     return 0;
 }
 
 Element* DocumentOrderedMap::getElementById(const AtomicString& key, const TreeScope* scope) const
 {
     return get<keyMatchesId>(key, scope);
 }
 
 const WillBeHeapVector<RawPtrWillBeMember<Element> >& DocumentOrderedMap::getAllElementsById(const AtomicString& key, const TreeScope* scope) const
 {
     ASSERT(key);
     ASSERT(scope);
     DEFINE_STATIC_LOCAL(OwnPtrWillBePersistent<WillBeHeapVector<RawPtrWillBeMember<Element> > >, emptyVector, (adoptPtrWillBeNoop(new WillBeHeapVector<RawPtrWillBeMember<Element> >())));
 
-    Map::iterator it = m_map.find(key.impl());
+    Map::iterator it = m_map.find(key);
     if (it == m_map.end())
         return *emptyVector;
 
     OwnPtrWillBeMember<MapEntry>& entry = it->value;
     ASSERT(entry->count);
 
     if (entry->orderedList.isEmpty()) {
         entry->orderedList.reserveCapacity(entry->count);
         for (Element* element = entry->element ? entry->element.get() : ElementTraversal::firstWithin(scope->rootNode()); entry->orderedList.size() < entry->count; element = ElementTraversal::next(*element)) {
             ASSERT(element);
@@ skipping 32 matching lines @@
 
 void DocumentOrderedMap::MapEntry::trace(Visitor* visitor)
 {
     visitor->trace(element);
 #if ENABLE(OILPAN)
     visitor->trace(orderedList);
 #endif
 }
 
 } // namespace blink