Revert of Move DOMArrayBuffer, DOMArrayBufferViews and DataView to the heap.

third_party/WebKit/Source/modules/push_messaging/PushMessageData.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/push_messaging/PushMessageData.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/modules/v8/UnionTypesModules.h"
@@ skipping 11 matching lines @@
     // In case the message is explicitly null, return a null pointer which will
     // be set in the PushEvent.
     if (messageString.isNull())
         return nullptr;
     return PushMessageData::create(ArrayBufferOrArrayBufferViewOrUSVString::fromUSVString(messageString));
 }
 
 PushMessageData* PushMessageData::create(const ArrayBufferOrArrayBufferViewOrUSVString& messageData)
 {
     if (messageData.isArrayBuffer() || messageData.isArrayBufferView()) {
-        DOMArrayBuffer* buffer = messageData.isArrayBufferView()
+        RefPtr<DOMArrayBuffer> buffer = messageData.isArrayBufferView()
             ? messageData.getAsArrayBufferView()->buffer()
             : messageData.getAsArrayBuffer();
 
         return new PushMessageData(static_cast<const char*>(buffer->data()), buffer->byteLength());
     }
 
     if (messageData.isUSVString()) {
         CString encodedString = UTF8Encoding().encode(messageData.getAsUSVString(), WTF::EntitiesForUnencodables);
         return new PushMessageData(encodedString.data(), encodedString.length());
     }
 
     ASSERT(messageData.isNull());
     return nullptr;
 }
 
 PushMessageData::PushMessageData(const char* data, unsigned bytesSize)
 {
     m_data.append(data, bytesSize);
 }
 
 PushMessageData::~PushMessageData()
 {
 }
 
-DOMArrayBuffer* PushMessageData::arrayBuffer() const
+PassRefPtr<DOMArrayBuffer> PushMessageData::arrayBuffer() const
 {
     return DOMArrayBuffer::create(m_data.data(), m_data.size());
 }
 
 Blob* PushMessageData::blob() const
 {
     OwnPtr<BlobData> blobData = BlobData::create();
     blobData->appendBytes(m_data.data(), m_data.size());
 
     // Note that the content type of the Blob object is deliberately not being
@@ skipping 23 matching lines @@
 String PushMessageData::text() const
 {
     return UTF8Encoding().decode(m_data.data(), m_data.size());
 }
 
 DEFINE_TRACE(PushMessageData)
 {
 }
 
 } // namespace blink