Return unique_ptr<WebDataConsumerHandle::Reader> directly from obtainReader

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

 // Copyright 2015 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/FetchBlobDataConsumerHandle.h"
 
 #include "core/dom/ExecutionContext.h"
 #include "core/fetch/FetchInitiatorTypeNames.h"
 #include "core/loader/ThreadableLoaderClient.h"
 #include "modules/fetch/CompositeDataConsumerHandle.h"
@@ skipping 290 matching lines @@
 }
 
 std::unique_ptr<FetchDataConsumerHandle> FetchBlobDataConsumerHandle::create(ExecutionContext* executionContext, PassRefPtr<BlobDataHandle> blobDataHandle)
 {
     if (!blobDataHandle)
         return createFetchDataConsumerHandleFromWebHandle(createDoneDataConsumerHandle());
 
     return wrapUnique(new FetchBlobDataConsumerHandle(executionContext, blobDataHandle, new DefaultLoaderFactory));
 }
 
-FetchDataConsumerHandle::Reader* FetchBlobDataConsumerHandle::obtainReaderInternal(Client* client)
+std::unique_ptr<FetchDataConsumerHandle::Reader> FetchBlobDataConsumerHandle::obtainFetchDataReader(Client* client)
 {
-    return m_readerContext->obtainReader(client).release();
+    return m_readerContext->obtainReader(client);
 }
 
 } // namespace blink