sRGB cleanup in image filters. Ensure we configure paints correctly.

src/effects/SkXfermodeImageFilter.cpp

Index: src/effects/SkXfermodeImageFilter.cpp
diff --git a/src/effects/SkXfermodeImageFilter.cpp b/src/effects/SkXfermodeImageFilter.cpp
index 62daa5ae3bda7b5ab9ffd60b8307177b94f1fa63..c7e4143e117de6bedfb654d10ff864ae12087cbe 100644
--- a/src/effects/SkXfermodeImageFilter.cpp
+++ b/src/effects/SkXfermodeImageFilter.cpp
@@ -250,7 +250,7 @@ sk_sp<SkSpecialImage> SkXfermodeImageFilter::filterImageGPU(
     if (!drawContext) {
         return nullptr;
     }
-    paint.setAllowSRGBInputs(drawContext->isGammaCorrect());
+    paint.setGammaCorrect(drawContext->isGammaCorrect());
 
     SkMatrix matrix;
     matrix.setTranslate(SkIntToScalar(-bounds.left()), SkIntToScalar(-bounds.top()));