ServiceWorker: Show a warning when ServiceWorker(Client) attempts to send a transferable ArrayBuffer

Source/modules/serviceworkers/ServiceWorkerClient.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 "config.h"
 #include "modules/serviceworkers/ServiceWorkerClient.h"
 
 #include "bindings/core/v8/CallbackPromiseAdapter.h"
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/SerializedScriptValue.h"
+#include "core/inspector/ConsoleMessage.h"
 #include "modules/serviceworkers/ServiceWorkerGlobalScopeClient.h"
 #include "public/platform/WebString.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 ServiceWorkerClient* ServiceWorkerClient::create(const WebServiceWorkerClientInfo& info)
 {
     return new ServiceWorkerClient(info);
 }
@@ skipping 26 matching lines @@
     return String();
 }
 
 void ServiceWorkerClient::postMessage(ExecutionContext* context, PassRefPtr<SerializedScriptValue> message, const MessagePortArray* ports, ExceptionState& exceptionState)
 {
     // Disentangle the port in preparation for sending it to the remote context.
     OwnPtr<MessagePortChannelArray> channels = MessagePort::disentanglePorts(context, ports, exceptionState);
     if (exceptionState.hadException())
         return;
 
+    if (message->containsTransferableArrayBuffer())
+        context->addConsoleMessage(ConsoleMessage::create(JSMessageSource, WarningMessageLevel, "ServiceWorkerClient cannot send an ArrayBuffer as a transferable object yet. See http://crbug.com/511119"));
+
     WebString messageString = message->toWireString();
     OwnPtr<WebMessagePortChannelArray> webChannels = MessagePort::toWebMessagePortChannelArray(channels.release());
     ServiceWorkerGlobalScopeClient::from(context)->postMessageToClient(m_uuid, messageString, webChannels.release());
 }
 
 } // namespace blink