Cheaper thread-safe atomic initialization of static references.

Source/platform/image-decoders/ImageDecoder.h

 /*
  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 214 matching lines @@
             ColorProfile colorProfile;
             colorProfile.append(profile.data(), profile.size());
             return colorProfile;
         }
 
         qcms_profile* m_outputDeviceProfile;
     };
 
     static qcms_profile* qcmsOutputDeviceProfile()
     {
-        AtomicallyInitializedStatic(OutputDeviceProfile*, outputDeviceProfile = new OutputDeviceProfile());
+        AtomicallyInitializedStaticReference(OutputDeviceProfile, outputDeviceProfile, new OutputDeviceProfile);
 
-        return outputDeviceProfile->profile();
+        return outputDeviceProfile.profile();
     }
 #endif
 
     // Sets the "decode failure" flag.  For caller convenience (since so
     // many callers want to return false after calling this), returns false
     // to enable easy tailcalling.  Subclasses may override this to also
     // clean up any local data.
     virtual bool setFailed()
     {
         m_failed = true;
@@ skipping 74 matching lines @@
 
     IntSize m_size;
     bool m_sizeAvailable;
     bool m_isAllDataReceived;
     bool m_failed;
 };
 
 } // namespace blink
 
 #endif