Replace AllowCrossThreadAccess() + non-GCed pointers with crossThreadUnretained()

third_party/WebKit/Source/modules/fetch/DataConsumerHandleTestUtil.h

 // 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.
 
 #ifndef DataConsumerHandleTestUtil_h
 #define DataConsumerHandleTestUtil_h
 
 #include "bindings/core/v8/ScriptState.h"
 #include "core/testing/NullExecutionContext.h"
 #include "gin/public/isolate_holder.h"
@@ skipping 481 matching lines @@
     // where T is one of HandleReader and HandleTwophaseReader.
     template <typename T>
     class HandleReaderRunner final {
         STACK_ALLOCATED();
     public:
         explicit HandleReaderRunner(std::unique_ptr<WebDataConsumerHandle> handle)
             : m_thread(wrapUnique(new Thread("reading thread")))
             , m_event(wrapUnique(new WaitableEvent()))
             , m_isDone(false)
         {
-            m_thread->thread()->postTask(BLINK_FROM_HERE, threadSafeBind(&HandleReaderRunner::start, AllowCrossThreadAccess(this), passed(std::move(handle))));
+            m_thread->thread()->postTask(BLINK_FROM_HERE, threadSafeBind(&HandleReaderRunner::start, crossThreadUnretained(this), passed(std::move(handle))));
         }
         ~HandleReaderRunner()
         {
             wait();
         }
 
         std::unique_ptr<HandleReadResult> wait()
         {
             if (m_isDone)
                 return nullptr;
@@ skipping 20 matching lines @@
         std::unique_ptr<HandleReadResult> m_result;
         bool m_isDone;
 
         std::unique_ptr<T> m_handleReader;
     };
 };
 
 } // namespace blink
 
 #endif // DataConsumerHandleTestUtil_h