Track some changes to reference types (mostly Blink types moving to Oilpan).

Source/bindings/modules/dart/custom/DartAudioContextCustom.cpp

 // Copyright 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 38 matching lines @@
     {
         AudioContext* receiver = DartDOMWrapper::receiver< AudioContext >(args);
 
         // The audio decoder retains the array buffer to operate on it
         // in a different thread. Therefore, we make sure to
         // externalize the audioData.
         RefPtr<ArrayBuffer> audioData = DartUtilities::dartToExternalizedArrayBuffer(Dart_GetNativeArgument(args, 1), exception);
         if (exception)
             goto fail;
 
-        OwnPtr<AudioBufferCallback> successCallback = DartAudioBufferCallback::create(Dart_GetNativeArgument(args, 2), exception);
+        AudioBufferCallback* successCallback = DartAudioBufferCallback::create(Dart_GetNativeArgument(args, 2), exception);
         if (exception)
             goto fail;
 
-        OwnPtr<AudioBufferCallback> errorCallback = DartAudioBufferCallback::createWithNullCheck(Dart_GetNativeArgument(args, 3), exception);
+        AudioBufferCallback* errorCallback = DartAudioBufferCallback::createWithNullCheck(Dart_GetNativeArgument(args, 3), exception);
         if (exception)
             goto fail;
 
         DartExceptionState es;
-        receiver->decodeAudioData(audioData.get(), successCallback.release(), errorCallback.release(), es);
+        receiver->decodeAudioData(audioData.get(), successCallback, errorCallback, es);
         if (es.hadException()) {
             exception = es.toDart(args);
             goto fail;
         }
         return;
     }
 
 fail:
     Dart_ThrowException(exception);
     ASSERT_NOT_REACHED();
@@ skipping 26 matching lines @@
 fail:
     Dart_ThrowException(exception);
     ASSERT_NOT_REACHED();
 }
 
 }
 
 }
 
 #endif // ENABLE(WEB_AUDIO)