WebMessaging: Send transferable ArrayBuffers by copy-and-neuter semantics

third_party/WebKit/Source/core/dom/MessagePort.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 17 matching lines @@
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
 #include "bindings/core/v8/SerializedScriptValue.h"
 #include "bindings/core/v8/SerializedScriptValueFactory.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/dom/ExecutionContextTask.h"
 #include "core/events/MessageEvent.h"
 #include "core/frame/LocalDOMWindow.h"
-#include "core/inspector/ConsoleMessage.h"
 #include "core/workers/WorkerGlobalScope.h"
 #include "public/platform/WebString.h"
 #include "wtf/Functional.h"
 #include "wtf/PtrUtil.h"
 #include "wtf/text/AtomicString.h"
 #include <memory>
 
 namespace blink {
 
 MessagePort* MessagePort::create(ExecutionContext& executionContext) {
@@ skipping 30 matching lines @@
           DataCloneError,
           "Port at index " + String::number(i) + " contains the source port.");
       return;
     }
   }
   std::unique_ptr<MessagePortChannelArray> channels =
       MessagePort::disentanglePorts(context, ports, exceptionState);
   if (exceptionState.hadException())
     return;
 
-  if (message->containsTransferableArrayBuffer())
-    getExecutionContext()->addConsoleMessage(ConsoleMessage::create(
-        JSMessageSource, WarningMessageLevel,
-        "MessagePort cannot send an ArrayBuffer as a transferable object yet. "
-        "See http://crbug.com/334408"));
-
   WebString messageString = message->toWireString();
   std::unique_ptr<WebMessagePortChannelArray> webChannels =
       toWebMessagePortChannelArray(std::move(channels));
   m_entangledChannel->postMessage(messageString, webChannels.release());
 }
 
 // static
 std::unique_ptr<WebMessagePortChannelArray>
 MessagePort::toWebMessagePortChannelArray(
     std::unique_ptr<MessagePortChannelArray> channels) {
@@ skipping 187 matching lines @@
   }
   return portArray;
 }
 
 DEFINE_TRACE(MessagePort) {
   ActiveDOMObject::trace(visitor);
   EventTargetWithInlineData::trace(visitor);
 }
 
 }  // namespace blink