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

Source/core/html/parser/HTMLParserThread.h

 /*
  * Copyright (C) 2013 Google 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 15 matching lines @@
  * 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 HTMLParserThread_h
 #define HTMLParserThread_h
 
 #include "core/CoreExport.h"
 #include "platform/WebThreadSupportingGC.h"
+#include "wtf/Allocator.h"
 #include "wtf/Functional.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/PassOwnPtr.h"
 
 namespace blink {
 
 class CORE_EXPORT HTMLParserThread {
+    WTF_MAKE_FAST_ALLOCATED(HTMLParserThread);
 public:
     static void init();
     static void shutdown();
 
     // It is an error to call shared() before init() or after shutdown();
     static HTMLParserThread* shared();
 
     void postTask(PassOwnPtr<Closure>);
     WebThread& platformThread();
     bool isRunning();
 
 private:
     HTMLParserThread();
     ~HTMLParserThread();
     void setupHTMLParserThread();
     void cleanupHTMLParserThread();
 
     OwnPtr<WebThreadSupportingGC> m_thread;
 };
 
 } // namespace blink
 
 #endif // HTMLParserThread_h