Remove CSS_SHADERS compile-time flag.

Source/WebCore/loader/cache/CachedResource.h

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller <mueller@kde.org>
     Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
     Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
@@ skipping 64 matching lines @@
 #if ENABLE(XSLT)
         , XSLStyleSheet
 #endif
 #if ENABLE(LINK_PREFETCH)
         , LinkPrefetch
         , LinkSubresource
 #endif
 #if ENABLE(VIDEO_TRACK)
         , TextTrackResource
 #endif
-#if ENABLE(CSS_SHADERS)
         , ShaderResource
-#endif
     };
 
     enum Status {
         Unknown,      // let cache decide what to do with it
         Pending,      // only partially loaded
         Cached,       // regular case
         LoadError,
         DecodeError
     };
 
@@ skipping 269 matching lines @@
     // If this field is non-null, the resource has a proxy for checking whether it is still up to date (see m_resourceToRevalidate).
     CachedResource* m_proxyResource;
 
     // These handles will need to be updated to point to the m_resourceToRevalidate in case we get 304 response.
     HashSet<CachedResourceHandleBase*> m_handlesToRevalidate;
 };
 
 }
 
 #endif