Implement color filter as GrGLEffect

src/gpu/gl/GrGLProgram.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 GrGLProgram_DEFINED
 #define GrGLProgram_DEFINED
@@ skipping 166 matching lines @@
     GrGLSLExpr<4> genInputCoverage(GrGLShaderBuilder* builder);
 
     void genGeometryShader(GrGLShaderBuilder::VertexBuilder* vertexBuilder) const;
 
     // Creates a set of GrGLEffects and GrGLDrawEffects.
     void buildGLEffects(SkTArray<EffectAndSamplers> GrGLProgram::* effectSet,
                         const GrEffectStage* stages[],
                         int count,
                         bool hasExplicitLocalCoords,
                         SkTArray<GrDrawEffect>* drawEffects,
-                        bool* hasVertexShaderEffects);
+                        bool* hasVertexShaderEffects,
+                        bool* willUseInputColor);
 
     // Creates a GL program ID, binds shader attributes to GL vertex attrs, and links the program
     bool bindOutputsAttribsAndLinkProgram(const GrGLShaderBuilder& builder,
                                           bool bindColorOut,
                                           bool bindDualSrcOut);
 
     // Sets the texture units for samplers
     void initSamplerUniforms();
     void initEffectSamplerUniforms(EffectAndSamplers* effect, int* texUnitIdx);
 
@@ skipping 32 matching lines @@
     GrGLProgramDesc             fDesc;
     GrGpuGL*                    fGpu;
 
     GrGLUniformManager          fUniformManager;
     UniformHandles              fUniformHandles;
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif