Make classes and structures in core/dom fast-allocated.

Source/core/dom/DocumentOrderedMap.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 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:
  *
  *     * 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 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef DocumentOrderedMap_h
 #define DocumentOrderedMap_h
 
 #include "platform/heap/Handle.h"
+#include "wtf/Allocator.h"
 #include "wtf/Forward.h"
 #include "wtf/HashMap.h"
 #include "wtf/text/AtomicString.h"
 #include "wtf/text/AtomicStringHash.h"
 #include "wtf/text/StringImpl.h"
 
 namespace blink {
 
 class Element;
 class TreeScope;
 
 class DocumentOrderedMap : public NoBaseWillBeGarbageCollected<DocumentOrderedMap> {
+    WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED(DocumentOrderedMap);
 public:
     static PassOwnPtrWillBeRawPtr<DocumentOrderedMap> create();
     void add(const AtomicString&, Element*);
     void remove(const AtomicString&, Element*);
 
     bool contains(const AtomicString&) const;
     bool containsMultiple(const AtomicString&) const;
     // concrete instantiations of the get<>() method template
     Element* getElementById(const AtomicString&, const TreeScope*) const;
     const WillBeHeapVector<RawPtrWillBeMember<Element>>& getAllElementsById(const AtomicString&, const TreeScope*) const;
@@ skipping 34 matching lines @@
 
 inline bool DocumentOrderedMap::containsMultiple(const AtomicString& id) const
 {
     Map::const_iterator it = m_map.find(id);
     return it != m_map.end() && it->value->count > 1;
 }
 
 } // namespace blink
 
 #endif // DocumentOrderedMap_h