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

third_party/WebKit/Source/modules/webgl/WebGLRenderingContextBase.cpp

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 537 matching lines @@
 }
 
 static std::unique_ptr<WebGraphicsContext3DProvider> createContextProviderOnWorkerThread(Platform::ContextAttributes contextAttributes, Platform::GraphicsInfo* glInfo, ScriptState* scriptState)
 {
     WaitableEvent waitableEvent;
     ContextProviderCreationInfo creationInfo;
     creationInfo.contextAttributes = contextAttributes;
     creationInfo.glInfo = glInfo;
     creationInfo.scriptState = scriptState;
     WebTaskRunner* taskRunner = Platform::current()->mainThread()->getWebTaskRunner();
-    taskRunner->postTask(BLINK_FROM_HERE, threadSafeBind(&createContextProviderOnMainThread, AllowCrossThreadAccess(&creationInfo), AllowCrossThreadAccess(&waitableEvent)));
+    taskRunner->postTask(BLINK_FROM_HERE, threadSafeBind(&createContextProviderOnMainThread, crossThreadUnretained(&creationInfo), crossThreadUnretained(&waitableEvent)));
     waitableEvent.wait();
     return std::move(creationInfo.createdContextProvider);
 }
 
 std::unique_ptr<WebGraphicsContext3DProvider> WebGLRenderingContextBase::createContextProviderInternal(HTMLCanvasElement* canvas, ScriptState* scriptState, WebGLContextAttributes attributes, unsigned webGLVersion)
 {
     // Exactly one of these must be provided.
     DCHECK_EQ(!canvas, !!scriptState);
     // The canvas is only given on the main thread.
     DCHECK(!canvas || isMainThread());
@@ skipping 5855 matching lines @@
         contextGL()->PixelStorei(GL_UNPACK_ALIGNMENT, 1);
 }
 
 void WebGLRenderingContextBase::restoreUnpackParameters()
 {
     if (m_unpackAlignment != 1)
         contextGL()->PixelStorei(GL_UNPACK_ALIGNMENT, m_unpackAlignment);
 }
 
 } // namespace blink