Revert of Move DOMArrayBuffer, DOMArrayBufferViews and DataView to the heap.

third_party/WebKit/Source/core/fileapi/FileReaderSync.h

 /*
  * Copyright (C) 2010 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 FileReaderSync_h
 #define FileReaderSync_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "platform/heap/Handle.h"
+#include "wtf/RefCounted.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class Blob;
 class DOMArrayBuffer;
 class ExceptionState;
 class ExecutionContext;
 class FileReaderLoader;
 
 class FileReaderSync final : public GarbageCollected<FileReaderSync>, public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
 public:
     static FileReaderSync* create()
     {
         return new FileReaderSync();
     }
 
-    DOMArrayBuffer* readAsArrayBuffer(ExecutionContext*, Blob*, ExceptionState&);
+    PassRefPtr<DOMArrayBuffer> readAsArrayBuffer(ExecutionContext*, Blob*, ExceptionState&);
     String readAsBinaryString(ExecutionContext*, Blob*, ExceptionState&);
     String readAsText(ExecutionContext* executionContext, Blob* blob, ExceptionState& ec)
     {
         return readAsText(executionContext, blob, "", ec);
     }
     String readAsText(ExecutionContext*, Blob*, const String& encoding, ExceptionState&);
     String readAsDataURL(ExecutionContext*, Blob*, ExceptionState&);
 
     DEFINE_INLINE_TRACE() { }
 
 private:
     FileReaderSync();
 
     void startLoading(ExecutionContext*, FileReaderLoader&, const Blob&, ExceptionState&);
 };
 
 } // namespace blink
 
 #endif // FileReaderSync_h