Make all GrFragmentProcessors GL independent.

include/gpu/effects/GrConstColorProcessor.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrColorProcessor_DEFINED
 #define GrColorProcessor_DEFINED
 
@@ skipping 23 matching lines @@
 
     GrColor color() const { return fColor; }
 
     InputMode inputMode() const { return fMode; }
 
 private:
     GrConstColorProcessor(GrColor color, InputMode mode) : fColor(color), fMode(mode) {
         this->initClassID<GrConstColorProcessor>();
     }
 
-    GrGLFragmentProcessor* onCreateGLInstance() const override;
+    GrGLSLFragmentProcessor* onCreateGLInstance() const override;
 
     void onGetGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override;
 
     bool onIsEqual(const GrFragmentProcessor&) const override;
 
     void onComputeInvariantOutput(GrInvariantOutput* inout) const override;
 
     GR_DECLARE_FRAGMENT_PROCESSOR_TEST;
 
     GrColor     fColor;
     InputMode   fMode;
 
     typedef GrFragmentProcessor INHERITED;
 };
 
 #endif