Adding ArrayBuffer support to ServiceWorker Response and tests

Source/modules/serviceworkers/Response.cpp

Index: Source/modules/serviceworkers/Response.cpp
diff --git a/Source/modules/serviceworkers/Response.cpp b/Source/modules/serviceworkers/Response.cpp
index 5752a45b580d848c612fdf2a4eea9587d125439c..b12be8c26201e07ba676c13a23ccbe0a9390c58a 100644
--- a/Source/modules/serviceworkers/Response.cpp
+++ b/Source/modules/serviceworkers/Response.cpp
@@ -11,6 +11,7 @@
 #include "modules/serviceworkers/FetchBodyStream.h"
 #include "modules/serviceworkers/ResponseInit.h"
 #include "public/platform/WebServiceWorkerResponse.h"
+#include "wtf/ArrayBuffer.h"
 
 namespace blink {
 
@@ -60,6 +61,15 @@ Response* Response::create(const String& body, const Dictionary& responseInit, E
     return create(blob.get(), ResponseInit(responseInit), exceptionState);
 }
 
+Response* Response::create(const ArrayBuffer* body, const Dictionary& responseInit, ExceptionState& exceptionState)
+{
+    OwnPtr<BlobData> blobData = BlobData::create();
+    blobData->appendArrayBuffer(body);
+    const long long length = blobData->length();
+    RefPtrWillBeRawPtr<Blob> blob = Blob::create(BlobDataHandle::create(blobData.release(), length));
+    return create(blob.get(), ResponseInit(responseInit), exceptionState);
+}
+
 Response* Response::create(Blob* body, const ResponseInit& responseInit, ExceptionState& exceptionState)
 {
     // "1. If |init|'s status member is not in the range 200 to 599, throw a