Remove more oilpan.

sky/engine/core/html/canvas/WebGLProgram.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 185 matching lines @@
     if (!context)
         return;
     GLint linkStatus = 0;
     context->getProgramiv(object(), GL_LINK_STATUS, &linkStatus);
     m_linkStatus = linkStatus;
     if (m_linkStatus)
         cacheActiveAttribLocations(context);
     m_infoValid = true;
 }
 
-void WebGLProgram::trace(Visitor* visitor)
-{
-    visitor->trace(m_vertexShader);
-    visitor->trace(m_fragmentShader);
-    WebGLSharedObject::trace(visitor);
 }
-
-}