Remove more oilpan.

sky/engine/core/html/canvas/WebGLVertexArrayObjectOES.cpp

 /*
  * Copyright (C) 2011 Google 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 144 matching lines @@
         }
     }
 }
 
 void WebGLVertexArrayObjectOES::setVertexAttribDivisor(GLuint index, GLuint divisor)
 {
     VertexAttribState& state = m_vertexAttribState[index];
     state.divisor = divisor;
 }
 
-void WebGLVertexArrayObjectOES::VertexAttribState::trace(Visitor* visitor)
-{
-    visitor->trace(bufferBinding);
 }
-
-void WebGLVertexArrayObjectOES::trace(Visitor* visitor)
-{
-    visitor->trace(m_boundElementArrayBuffer);
-    visitor->trace(m_vertexAttribState);
-    WebGLContextObject::trace(visitor);
-}
-
-}