Add support for blending of LCD for all blend modes.

src/gpu/GrProcOptInfo.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 GrProcOptInfo_DEFINED
 #define GrProcOptInfo_DEFINED
 
@@ skipping 13 matching lines @@
 class GrProcOptInfo {
 public:
     GrProcOptInfo()
         : fInOut(0, static_cast<GrColorComponentFlags>(0), false)
         , fFirstEffectiveProcessorIndex(0)
         , fInputColorIsUsed(true)
         , fInputColor(0)
         , fReadsFragPosition(false) {}
 
     void calcWithInitialValues(const GrFragmentProcessor* const *, int cnt, GrColor startColor,
-                               GrColorComponentFlags, bool areCoverageStages);
+                               GrColorComponentFlags, bool areCoverageStages, bool isLCD = false);
 
     void calcColorWithBatch(const GrDrawBatch*, const GrFragmentProcessor* const[], int cnt);
     void calcCoverageWithBatch(const GrDrawBatch*, const GrFragmentProcessor* const[], int cnt);
 
     // TODO delete these when batch is everywhere
     void calcColorWithPrimProc(const GrPrimitiveProcessor*, const GrFragmentProcessor* const[],
                                int cnt);
     void calcCoverageWithPrimProc(const GrPrimitiveProcessor*, const GrFragmentProcessor* const[],
                                   int cnt);
 
@@ skipping 46 matching lines @@
     void internalCalc(const GrFragmentProcessor* const[], int cnt, bool initWillReadFragPosition);
 
     GrInvariantOutput fInOut;
     int fFirstEffectiveProcessorIndex;
     bool fInputColorIsUsed;
     GrColor fInputColor;
     bool fReadsFragPosition;
 };
 
 #endif