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

third_party/WebKit/Source/web/CompositorMutatorImpl.cpp

 // Copyright 2016 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 "web/CompositorMutatorImpl.h"
 
 #include "core/animation/CustomCompositorAnimationManager.h"
 #include "core/dom/CompositorProxy.h"
 #include "platform/ThreadSafeFunctional.h"
 #include "platform/TraceEvent.h"
@@ skipping 23 matching lines @@
     : m_animationManager(wrapUnique(new CustomCompositorAnimationManager))
     , m_client(nullptr)
 {
 }
 
 std::unique_ptr<CompositorMutatorClient> CompositorMutatorImpl::createClient()
 {
     std::unique_ptr<CompositorMutatorClient> mutatorClient;
     WaitableEvent doneEvent;
     if (WebThread* compositorThread = Platform::current()->compositorThread()) {
-        compositorThread->getWebTaskRunner()->postTask(BLINK_FROM_HERE, threadSafeBind(&createCompositorMutatorClient, AllowCrossThreadAccess(&mutatorClient), AllowCrossThreadAccess(&doneEvent)));
+        compositorThread->getWebTaskRunner()->postTask(BLINK_FROM_HERE, threadSafeBind(&createCompositorMutatorClient, crossThreadUnretained(&mutatorClient), crossThreadUnretained(&doneEvent)));
     } else {
         createCompositorMutatorClient(&mutatorClient, &doneEvent);
     }
     // TODO(flackr): Instead of waiting for this event, we may be able to just set the
     // mutator on the CompositorProxyClient directly from the compositor thread before
     // it gets used there. We still need to make sure we only create one mutator though.
     doneEvent.wait();
     return mutatorClient;
 }
 
@@ skipping 24 matching lines @@
     setNeedsMutate();
 }
 
 void CompositorMutatorImpl::setNeedsMutate()
 {
     TRACE_EVENT0("compositor-worker", "CompositorMutatorImpl::setNeedsMutate");
     m_client->setNeedsMutate();
 }
 
 } // namespace blink