Change SkShader;asFragmentProcessor signature to no longer take skpaint\grcolor*

src/gpu/effects/GrCoverageSetOpXP.cpp

Index: src/gpu/effects/GrCoverageSetOpXP.cpp
diff --git a/src/gpu/effects/GrCoverageSetOpXP.cpp b/src/gpu/effects/GrCoverageSetOpXP.cpp
index 8c45d22727ab18a28dfaf95d818ab5217dbc8287..89d7565894a9a4f33f5e83edca46aa247432a9c8 100644
--- a/src/gpu/effects/GrCoverageSetOpXP.cpp
+++ b/src/gpu/effects/GrCoverageSetOpXP.cpp
@@ -245,7 +245,7 @@ void GrCoverageSetOpXPFactory::getInvariantBlendedColor(const GrProcOptInfo& col
 
 GR_DEFINE_XP_FACTORY_TEST(GrCoverageSetOpXPFactory);
 
-GrXPFactory* GrCoverageSetOpXPFactory::TestCreate(GrProcessorTestData* d) {
+const GrXPFactory* GrCoverageSetOpXPFactory::TestCreate(GrProcessorTestData* d) {
     SkRegion::Op regionOp = SkRegion::Op(d->fRandom->nextULessThan(SkRegion::kLastOp + 1));
     bool invertCoverage = d->fRandom->nextBool();
     return GrCoverageSetOpXPFactory::Create(regionOp, invertCoverage);