Make platform/image-decoders to use USING_FAST_MALLOC.

third_party/WebKit/Source/platform/image-decoders/FastSharedBufferReader.h

 /*
  * Copyright (C) 2015 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 FastSharedBufferReader_h
 #define FastSharedBufferReader_h
 
 #include "platform/PlatformExport.h"
 #include "platform/SharedBuffer.h"
+#include "wtf/Allocator.h"
+#include "wtf/Noncopyable.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 // This class is used by image decoders to avoid memory consolidation and
 // therefore minimizes the cost of memory copying when the decoders
 // repeatedly read from a buffer that is continually growing due to network
 // traffic.
-class PLATFORM_EXPORT FastSharedBufferReader {
+class PLATFORM_EXPORT FastSharedBufferReader final {
+    DISALLOW_NEW();
+    WTF_MAKE_NONCOPYABLE(FastSharedBufferReader);
 public:
     FastSharedBufferReader(PassRefPtr<SharedBuffer> data);
 
     void setData(PassRefPtr<SharedBuffer>);
 
     // Returns a consecutive buffer that carries the data starting
     // at |dataPosition| with |length| bytes.
     // This method returns a pointer to a memory segment stored in
     // |m_data| if such a consecutive buffer can be found.
     // Otherwise copies into |buffer| and returns it.
@@ skipping 30 matching lines @@
     mutable const char* m_segment;
     mutable size_t m_segmentLength;
 
     // Data position in |m_data| pointed to by |m_segment|.
     mutable size_t m_dataPosition;
 };
 
 } // namespace blink
 
 #endif