(Some) gradients are gamma and gamut correct on GPU

src/effects/gradients/SkTwoPointConicalGradient.cpp

Index: src/effects/gradients/SkTwoPointConicalGradient.cpp
diff --git a/src/effects/gradients/SkTwoPointConicalGradient.cpp b/src/effects/gradients/SkTwoPointConicalGradient.cpp
index 84f1ae86751771d79fa3b7f34aa0011f05710002..55d99a21fb74b561ef08a830b7cec5e6cafe42cb 100644
--- a/src/effects/gradients/SkTwoPointConicalGradient.cpp
+++ b/src/effects/gradients/SkTwoPointConicalGradient.cpp
@@ -360,8 +360,11 @@ sk_sp<GrFragmentProcessor> SkTwoPointConicalGradient::asFragmentProcessor(
         const AsFPArgs& args) const {
     SkASSERT(args.fContext);
     SkASSERT(fPtsToUnit.isIdentity());
+    sk_sp<GrColorSpaceXform> colorSpaceXform = GrColorSpaceXform::Make(fColorSpace.get(),
+                                                                       args.fDstColorSpace);
     sk_sp<GrFragmentProcessor> inner(Gr2PtConicalGradientEffect::Make(
-        GrGradientEffect::CreateArgs(args.fContext, this, args.fLocalMatrix, fTileMode)));
+        GrGradientEffect::CreateArgs(args.fContext, this, args.fLocalMatrix, fTileMode,
+                                     std::move(colorSpaceXform), SkToBool(args.fDstColorSpace))));
     return GrFragmentProcessor::MulOutputByInputAlpha(std::move(inner));
 }