Revert of gl programs rewrite

src/gpu/GrDrawState.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrDrawState_DEFINED
 #define GrDrawState_DEFINED
 
@@ skipping 666 matching lines @@
         fDrawFace = face;
     }
 
     /// @}
 
     ///////////////////////////////////////////////////////////////////////////
     /// @name Hints
     /// Hints that when provided can enable optimizations.
     ////
 
-    enum Hints {
-        kVertexColorsAreOpaque_Hint = 0x1,
-        kLast_Hint = kVertexColorsAreOpaque_Hint
-    };
+    enum Hints { kVertexColorsAreOpaque_Hint = 0x1, };
 
     void setHint(Hints hint, bool value) { fHints = value ? (fHints | hint) : (fHints & ~hint); }
 
     bool vertexColorsAreOpaque() const { return kVertexColorsAreOpaque_Hint & fHints; }
 
     /// @}
 
     ///////////////////////////////////////////////////////////////////////////
 
     /** Return type for CombineIfPossible. */
@@ skipping 124 matching lines @@
     mutable uint32_t fCachedCapsID;
 
     friend class GrOptDrawState;
 
     typedef SkRefCnt INHERITED;
 };
 
 GR_MAKE_BITFIELD_OPS(GrDrawState::BlendOptFlags);
 
 #endif