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

Source/core/html/track/vtt/VTTTokenizer.h

 /*
  * Copyright (C) 2011 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 VTTTokenizer_h
 #define VTTTokenizer_h
 
 #include "core/html/parser/InputStreamPreprocessor.h"
 #include "core/html/track/vtt/VTTToken.h"
+#include "wtf/Allocator.h"
 
 namespace blink {
 
 class VTTTokenizer {
+    DISALLOW_ALLOCATION();
     WTF_MAKE_NONCOPYABLE(VTTTokenizer);
 public:
     explicit VTTTokenizer(const String& input);
 
     bool nextToken(VTTToken&);
 
     inline bool shouldSkipNullCharacters() const { return true; }
 
 private:
     SegmentedString m_input;
 
     // ://www.whatwg.org/specs/web-apps/current-work/#preprocessing-the-input-stream
     InputStreamPreprocessor<VTTTokenizer> m_inputStreamPreprocessor;
 };
 
 }
 
 #endif