remove separate color from coverage

src/gpu/GrOptDrawState.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrOptDrawState_DEFINED
 #define GrOptDrawState_DEFINED
 
@@ skipping 338 matching lines @@
      */
     void getStageStats(const GrDrawState& ds, int firstColorStageIdx, int firstCoverageStageIdx,
                        GrProgramDesc::DescInfo*);
 
     /**
      * Calculates the primary and secondary output types of the shader. For certain output types
      * the function may adjust the blend coefficients. After this function is called the src and dst
      * blend coeffs will represent those used by backend API.
      */
     void setOutputStateInfo(const GrDrawState& ds, const GrDrawTargetCaps&,
-                            int firstCoverageStageIdx, GrProgramDesc::DescInfo*,
-                            bool* separateCoverageFromColor);
+                            int firstCoverageStageIdx, GrProgramDesc::DescInfo*);
 
     bool isEqual(const GrOptDrawState& that) const;
 
     // These fields are roughly sorted by decreasing likelihood of being different in op==
     typedef GrTGpuResourceRef<GrRenderTarget> ProgramRenderTarget;
     ProgramRenderTarget                 fRenderTarget;
     GrColor                             fColor;
     SkMatrix                            fViewMatrix;
     GrColor                             fBlendConstant;
     uint32_t                            fFlagBits;
@@ skipping 20 matching lines @@
 
     GrProgramDesc fDesc;
 
     typedef SkRefCnt INHERITED;
 };
 
 GR_MAKE_BITFIELD_OPS(GrOptDrawState::BlendOptFlags);
 
 #endif