Fix compilation of the sample browser without RTSS support(with GLES 1 for example)
Fix compilation of the sample browser without RTSS support(with GLES 1 for example)

paroj/ogre,RealityFactory/ogre,OGRECave/ogre,OGRECave/ogre,paroj/ogre,OGRECave/ogre,OGRECave/ogre,RealityFactory/ogre,OGRECave/ogre,paroj/ogre,RealityFactory/ogre,RealityFactory/ogre,paroj/ogre,paroj/ogre,RealityFactory/ogre