Remove unused member variables in GrGLProgram

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 107 matching lines @@
     void setTransformData(const GrPrimitiveProcessor&,
                           const GrFragmentProcessor&,
                           int index,
                           GrGLInstalledFragProc*);
 
     // Helper for setData() that sets the view matrix and loads the render target height uniform
     void setRenderTargetState(const GrPrimitiveProcessor&, const GrPipeline&);
 
     // these reflect the current values of uniforms (GL uniform values travel with program)
     RenderTargetState fRenderTargetState;
-    GrColor fColor;
-    uint8_t fCoverage;
-    int fDstTextureUnit;
     BuiltinUniformHandles fBuiltinUniformHandles;
     GrGLuint fProgramID;
 
     // the installed effects
     SkAutoTDelete<GrGLInstalledGeoProc> fGeometryProcessor;
     SkAutoTDelete<GrGLInstalledXferProc> fXferProcessor;
     SkAutoTUnref<GrGLInstalledFragProcs> fFragmentProcessors;
 
     GrProgramDesc fDesc;
     GrGLGpu* fGpu;
     GrGLProgramDataManager fProgramDataManager;
     SkTArray<UniformHandle> fSamplerUniforms;
 
     friend class GrGLProgramBuilder;
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif