Add support for blending of LCD for all blend modes.

src/gpu/GrProcOptInfo.h

Index: src/gpu/GrProcOptInfo.h
diff --git a/src/gpu/GrProcOptInfo.h b/src/gpu/GrProcOptInfo.h
index b46957e7a066f04590fbd31c7f4411835e1c43bf..dd9374dd3abca9bbcf4504e0522e27fec5a8daee 100644
--- a/src/gpu/GrProcOptInfo.h
+++ b/src/gpu/GrProcOptInfo.h
@@ -31,7 +31,7 @@ public:
         , 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);