Make platform/image-decoders to use USING_FAST_MALLOC.

third_party/WebKit/Source/platform/image-decoders/jpeg/JPEGImageDecoder.cpp

 /*
  * Copyright (C) 2006 Apple Computer, Inc.
  *
  * Portions are Copyright (C) 2001-6 mozilla.org
  *
  * Other contributors:
  *   Stuart Parmenter <stuart@mozilla.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ skipping 64 matching lines @@
 const int exifMarker = JPEG_APP0 + 1;
 
 // JPEG only supports a denominator of 8.
 const unsigned scaleDenominator = 8;
 
 } // namespace
 
 namespace blink {
 
 struct decoder_error_mgr {
+    DISALLOW_NEW();
     struct jpeg_error_mgr pub; // "public" fields for IJG library
     int num_corrupt_warnings;  // Counts corrupt warning messages
     jmp_buf setjmp_buffer;     // For handling catastropic errors
 };
 
 struct decoder_source_mgr {
+    DISALLOW_NEW();
     struct jpeg_source_mgr pub; // "public" fields for IJG library
     JPEGImageReader* reader;
 };
 
 enum jstate {
     JPEG_HEADER,                 // Reading JFIF headers
     JPEG_START_DECOMPRESS,
     JPEG_DECOMPRESS_PROGRESSIVE, // Output progressive pixels
     JPEG_DECOMPRESS_SEQUENTIAL,  // Output sequential pixels
     JPEG_DONE
@@ skipping 181 matching lines @@
                 return YUV_410;
             default:
                 break;
             }
         }
     }
 
     return YUV_UNKNOWN;
 }
 
-class JPEGImageReader {
+class JPEGImageReader final {
     USING_FAST_MALLOC(JPEGImageReader);
+    WTF_MAKE_NONCOPYABLE(JPEGImageReader);
 public:
     JPEGImageReader(JPEGImageDecoder* decoder)
         : m_decoder(decoder)
         , m_needsRestart(false)
         , m_restartPosition(0)
         , m_nextReadPosition(0)
         , m_lastSetByte(nullptr)
         , m_state(JPEG_HEADER)
         , m_samples(nullptr)
 #if USE(QCMSLIB)
@@ skipping 756 matching lines @@
     // has failed.
     if (!m_reader->decode(onlySize) && isAllDataReceived())
         setFailed();
 
     // If decoding is done or failed, we don't need the JPEGImageReader anymore.
     if (isComplete(this, onlySize) || failed())
         m_reader.clear();
 }
 
 }