[Fetch API] Streaming error should be reported as a TypeError

third_party/WebKit/Source/modules/fetch/BodyStreamBuffer.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "modules/fetch/BodyStreamBuffer.h"
 
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/V8HiddenValue.h"
+#include "bindings/core/v8/V8ThrowException.h"
 #include "core/dom/DOMArrayBuffer.h"
 #include "core/dom/DOMTypedArray.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/streams/ReadableStreamController.h"
 #include "core/streams/ReadableStreamOperations.h"
 #include "modules/fetch/Body.h"
 #include "modules/fetch/ReadableStreamBytesConsumer.h"
 #include "platform/blob/BlobData.h"
 #include "platform/network/EncodedFormData.h"
 #include <memory>
@@ skipping 259 matching lines @@
       m_scriptState.get(), stream(), exceptionState);
   ReadableStreamOperations::defaultReaderRead(m_scriptState.get(), reader);
 }
 
 void BodyStreamBuffer::close() {
   controller()->close();
   cancelConsumer();
 }
 
 void BodyStreamBuffer::error() {
-  controller()->error(DOMException::create(NetworkError, "network error"));
+  {
+    ScriptState::Scope scope(m_scriptState.get());
+    controller()->error(V8ThrowException::createTypeError(
+        m_scriptState->isolate(), "network error"));
+  }
   cancelConsumer();
 }
 
 void BodyStreamBuffer::cancelConsumer() {
   if (m_consumer) {
     m_consumer->cancel();
     m_consumer = nullptr;
   }
 }
 
@@ skipping 80 matching lines @@
   }
   if (isErrored)
     return BytesConsumer::createErrored(BytesConsumer::Error("error"));
 
   DCHECK(consumer);
   consumer->clearClient();
   return consumer;
 }
 
 }  // namespace blink