Remove uses of VisitDOMWrapper

third_party/WebKit/Source/modules/webgl/WebGLObject.h

 /*
  * 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 79 matching lines @@
   // is specifically not. This is done in order to allow WebGLObjects to
   // refer back to their owning context in their destructor to delete their
   // resources if they are GC'd before the context is.
   EAGERLY_FINALIZE();
 
   DEFINE_INLINE_VIRTUAL_TRACE() {}
 
   DECLARE_VIRTUAL_TRACE_WRAPPERS();
 
  protected:
-  // To allow WebGL[2]RenderingContextBase to call visitChildDOMWrappers.
-  friend class WebGLRenderingContextBase;
-  friend class WebGL2RenderingContextBase;
-
   explicit WebGLObject(WebGLRenderingContextBase*);
 
   // deleteObjectImpl should be only called once to delete the OpenGL resource.
   // After calling deleteObjectImpl, hasObject() should return false.
   virtual void deleteObjectImpl(gpu::gles2::GLES2Interface*) = 0;
 
   virtual bool hasGroupOrContext() const = 0;
 
   // Return the current number of context losses associated with this
   // object's context group (if it's a shared object), or its
   // context's context group (if it's a per-context object).
   virtual uint32_t currentNumberOfContextLosses() const = 0;
 
   uint32_t cachedNumberOfContextLosses() const;
 
   void detach();
   void detachAndDeleteObject();
 
   virtual gpu::gles2::GLES2Interface* getAGLInterface() const = 0;
 
-  virtual void visitChildDOMWrappers(v8::Isolate*,
-                                     const v8::Persistent<v8::Object>&) {}
-
   // Used by leaf subclasses to run the destruction sequence -- what would
   // be in the destructor of the base class, if it could be. Must be called
   // no more than once.
   void runDestructor();
 
   // Indicates to subclasses that the destructor is being run.
   bool destructionInProgress() const;
 
  private:
   // This was the number of context losses of the object's associated
   // WebGLContextGroup at the time this object was created. Contexts
   // no longer refer to all the objects that they ever created, so
   // it's necessary to check this count when validating each object.
   uint32_t m_cachedNumberOfContextLosses;
 
   unsigned m_attachmentCount;
 
   // Indicates whether the WebGL context's deletion function for this
   // object (deleteBuffer, deleteTexture, etc.) has been called.
   bool m_deleted;
 
   // Indicates whether the destructor has been entered and we therefore
   // need to be careful in subclasses to not touch other on-heap objects.
   bool m_destructionInProgress;
 };
 
 }  // namespace blink
 
 #endif  // WebGLObject_h