Oilpan: eagerly finalize WebGLRenderingContext objects.

Source/core/html/canvas/WebGLContextObject.h

 /*
  * Copyright (C) 2011 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 17 matching lines @@
 
 #include "core/html/canvas/WebGLObject.h"
 
 namespace blink {
 class WebGraphicsContext3D;
 }
 
 namespace blink {
 
 class WebGLRenderingContextBase;
-class WebGLSharedWebGraphicsContext3D;
 
 // WebGLContextObject the base class for objects that are owned by a specific
 // WebGLRenderingContextBase.
 class WebGLContextObject : public WebGLObject {
 public:
     virtual ~WebGLContextObject();
 
     WebGLRenderingContextBase* context() const { return m_context; }
 
     virtual bool validate(const WebGLContextGroup*, const WebGLRenderingContextBase* context) const override final
@@ skipping 10 matching lines @@
 
     virtual bool hasGroupOrContext() const override final
     {
         return m_context;
     }
 
     virtual WebGraphicsContext3D* getAWebGraphicsContext3D() const override final;
 
 private:
     RawPtrWillBeMember<WebGLRenderingContextBase> m_context;
-#if ENABLE(OILPAN)
-    RefPtr<WebGLSharedWebGraphicsContext3D> m_sharedWebGraphicsContext3D;
-#endif
 };
 
 } // namespace blink
 
 #endif // WebGLContextObject_h