Revert of Remove GP from drawstate, revision of invariant output for GP

src/gpu/effects/GrTextureDomain.cpp

Index: src/gpu/effects/GrTextureDomain.cpp
diff --git a/src/gpu/effects/GrTextureDomain.cpp b/src/gpu/effects/GrTextureDomain.cpp
index f1ef61832cdea668d6374a1cba9efee26c1a6a12..b5b9ae46d93a555c883e79946a62edf285a85877 100644
--- a/src/gpu/effects/GrTextureDomain.cpp
+++ b/src/gpu/effects/GrTextureDomain.cpp
@@ -273,9 +273,9 @@
 void GrTextureDomainEffect::onComputeInvariantOutput(GrInvariantOutput* inout) const {
     if (GrTextureDomain::kDecal_Mode == fTextureDomain.mode()) { // TODO: helper
         if (GrPixelConfigIsAlphaOnly(this->texture(0)->config())) {
-            inout->mulByUnknownSingleComponent();
+            inout->mulByUnknownAlpha();
         } else {
-            inout->mulByUnknownFourComponents();
+            inout->mulByUnknownColor();
         }
     } else {
         this->updateInvariantOutputForModulation(inout);