Make platform/text to use USING_FAST_MALLOC.

third_party/WebKit/Source/platform/text/TextRunIterator.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
 // copyright notice, this list of conditions and the following disclaimer
@@ skipping 12 matching lines @@
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // 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 TextRunIterator_h
 #define TextRunIterator_h
 
 #include "platform/text/TextRun.h"
+#include "wtf/Allocator.h"
 
 namespace blink {
 
 class TextRunIterator {
+    DISALLOW_NEW();
 public:
     TextRunIterator()
         : m_textRun(0)
         , m_offset(0)
         , m_length(0)
     {
     }
 
     TextRunIterator(const TextRun* textRun, unsigned offset)
         : m_textRun(textRun)
@@ skipping 26 matching lines @@
 private:
     const TextRun* m_textRun;
     unsigned m_offset;
     unsigned m_length;
 };
 
 
 } // namespace blink
 
 #endif // TextRunIterator_h