Map typed data to ArrayBufferView on xhr send

Source/bindings/dart/custom/DartXMLHttpRequestCustom.cpp

Index: Source/bindings/dart/custom/DartXMLHttpRequestCustom.cpp
diff --git a/Source/bindings/dart/custom/DartXMLHttpRequestCustom.cpp b/Source/bindings/dart/custom/DartXMLHttpRequestCustom.cpp
index 4f39392951e104feffb01fd613574f03f821b2a2..9932f274ff181836f44289141067f0581727743e 100644
--- a/Source/bindings/dart/custom/DartXMLHttpRequestCustom.cpp
+++ b/Source/bindings/dart/custom/DartXMLHttpRequestCustom.cpp
@@ -149,10 +149,10 @@ void sendCallback(Dart_NativeArguments args)
                 goto fail;
             receiver->send(asDOMFormData, es);
         } else if (DartUtilities::isTypedData(arg1)) {
-            RefPtr<ArrayBuffer> asArrayBuffer = DartUtilities::dartToArrayBuffer(arg1, exception);
+            RefPtr<ArrayBufferView> asArrayBufferView = DartUtilities::dartToArrayBufferView(arg1, exception);
             if (exception)
                 goto fail;
-            receiver->send(asArrayBuffer.get(), es);
+            receiver->send(asArrayBufferView.get(), es);

[siva, 2013/08/23 20:06:53]

I think there is a bug in both
DartUtilities::dartToArrayBuffer and
DartUtilities::dartToArrayBufferView

    // FIXME: we really shouldn't release the data until we are done with it.
    Dart_TypedDataReleaseData(array);
    byteLength = elementLength * elementSizeFromViewType(type);
    return externalize ? ArrayBuffer::create(data, byteLength) :
ArrayBuffer::createNoCopy(data, byteLength);


It releases the data pointer but stores it in the ArrayBuffer/ArrayBufferView
object in the case when 'externalize' is false which is the default case.

         } else {
             DartStringAdapter asString = DartUtilities::dartToString(arg1, exception);
             if (exception)