Return unique_ptr<WebDataConsumerHandle::Reader> directly from obtainReader

third_party/WebKit/Source/modules/fetch/BodyStreamBuffer.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/fetch/BodyStreamBuffer.h"
 
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/V8HiddenValue.h"
 #include "bindings/core/v8/WorkerOrWorkletScriptController.h"
 #include "core/dom/DOMArrayBuffer.h"
@@ skipping 84 matching lines @@
     }
 
     Member<BodyStreamBuffer> m_buffer;
     Member<FetchDataLoader::Client> m_client;
 };
 
 BodyStreamBuffer::BodyStreamBuffer(ScriptState* scriptState, std::unique_ptr<FetchDataConsumerHandle> handle)
     : UnderlyingSourceBase(scriptState)
     , m_scriptState(scriptState)
     , m_handle(std::move(handle))
-    , m_reader(m_handle->obtainReader(this))
+    , m_reader(m_handle->obtainFetchDataReader(this))
     , m_madeFromReadableStream(false)
 {
     if (RuntimeEnabledFeatures::responseBodyWithV8ExtraStreamEnabled()) {
         if (isTerminating(scriptState)) {
             m_reader = nullptr;
             m_handle = nullptr;
             return;
         }
         v8::Local<v8::Value> bodyValue = toV8(this, scriptState);
         if (bodyValue.IsEmpty()) {
@@ skipping 361 matching lines @@
         return createFetchDataConsumerHandleFromWebHandle(createDoneDataConsumerHandle());
     }
     if (isErrored)
         return createFetchDataConsumerHandleFromWebHandle(createUnexpectedErrorDataConsumerHandle());
 
     DCHECK(handle);
     return handle;
 }
 
 } // namespace blink