Stop throwing DOM exceptions in internal 'XMLHttpRequest' response getters.

Source/bindings/v8/custom/V8XMLHttpRequestCustom.cpp

Index: Source/bindings/v8/custom/V8XMLHttpRequestCustom.cpp
diff --git a/Source/bindings/v8/custom/V8XMLHttpRequestCustom.cpp b/Source/bindings/v8/custom/V8XMLHttpRequestCustom.cpp
index e9eabc2f481e2d3c3260862ca2cb4c9148399f7b..9d734b6b26dae63a141ed17f7f7b534b61d3b2bd 100644
--- a/Source/bindings/v8/custom/V8XMLHttpRequestCustom.cpp
+++ b/Source/bindings/v8/custom/V8XMLHttpRequestCustom.cpp
@@ -102,20 +102,14 @@ void V8XMLHttpRequest::responseAttrGetterCustom(v8::Local<v8::String> name, cons
 
     case XMLHttpRequest::ResponseTypeBlob:
         {
-            ExceptionState es(info.GetIsolate());
-            Blob* blob = xmlHttpRequest->responseBlob(es);
-            if (es.throwIfNeeded())
-                return;
+            Blob* blob = xmlHttpRequest->responseBlob();
             v8SetReturnValue(info, toV8Fast(blob, info, xmlHttpRequest));
             return;
         }
 
     case XMLHttpRequest::ResponseTypeArrayBuffer:
         {
-            ExceptionState es(info.GetIsolate());
-            ArrayBuffer* arrayBuffer = xmlHttpRequest->responseArrayBuffer(es);
-            if (es.throwIfNeeded())
-                return;
+            ArrayBuffer* arrayBuffer = xmlHttpRequest->responseArrayBuffer();
             if (arrayBuffer && !arrayBuffer->hasDeallocationObserver()) {
                 arrayBuffer->setDeallocationObserver(V8ArrayBufferDeallocationObserver::instance());
                 v8::V8::AdjustAmountOfExternalAllocatedMemory(arrayBuffer->byteLength());