Simplify handling of Transferable objects while (de)serializing.

third_party/WebKit/Source/core/frame/DOMWindow.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 "core/frame/DOMWindow.h"
 
 #include "bindings/core/v8/ScriptCallStack.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ExecutionContext.h"
@@ skipping 150 matching lines @@
 }
 
 bool DOMWindow::isSecureContext() const
 {
     if (!frame())
         return false;
 
     return document()->isSecureContext(ExecutionContext::StandardSecureContextCheck);
 }
 
-void DOMWindow::postMessage(PassRefPtr<SerializedScriptValue> message, const MessagePortArray* ports, const String& targetOrigin, LocalDOMWindow* source, ExceptionState& exceptionState)
+void DOMWindow::postMessage(PassRefPtr<SerializedScriptValue> message, const MessagePortArray& ports, const String& targetOrigin, LocalDOMWindow* source, ExceptionState& exceptionState)
 {
     if (!isCurrentlyDisplayedInFrame())
         return;
 
     Document* sourceDocument = source->document();
 
     // Compute the target origin.  We need to do this synchronously in order
     // to generate the SyntaxError exception correctly.
     RefPtr<SecurityOrigin> target;
     if (targetOrigin == "/") {
@@ skipping 190 matching lines @@
     page->focusController().focusDocumentView(frame(), true /* notifyEmbedder */);
 }
 
 DEFINE_TRACE(DOMWindow)
 {
     visitor->trace(m_location);
     EventTargetWithInlineData::trace(visitor);
 }
 
 } // namespace blink