Revert of Change SkShader;asFragmentProcessor signature to no longer take skpaint\grcolor*

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
 
 #include "GrFragmentProcessor.h"
 
+class GrInvariantOutput;
+
 /**
  * This is a simple GrFragmentProcessor that outputs a constant color. It may do one of the
  * following with its input color: ignore it, or multiply it by the constant color, multiply its
  * alpha by the constant color and ignore the input color's r, g, and b.
  */
 class GrConstColorProcessor : public GrFragmentProcessor {
 public:
     enum InputMode {
         kIgnore_InputMode,
         kModulateRGBA_InputMode,
         kModulateA_InputMode,
 
         kLastInputMode = kModulateA_InputMode
     };
     static const int kInputModeCnt = kLastInputMode + 1;
 
     static GrFragmentProcessor* Create(GrColor color, InputMode mode) {
         return new GrConstColorProcessor(color, mode);
     }
 
+    ~GrConstColorProcessor() override {}
+
     const char* name() const override { return "Color"; }
 
     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;
 
     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