Create special surfaces according to original device (not always in N32)

src/effects/SkImageSource.cpp

Index: src/effects/SkImageSource.cpp
diff --git a/src/effects/SkImageSource.cpp b/src/effects/SkImageSource.cpp
index f3fc05491e1706d01f2ca6a9e11e9caf349620aa..f434de4aa0975ac655cf3990a2286ad8abb80cf9 100644
--- a/src/effects/SkImageSource.cpp
+++ b/src/effects/SkImageSource.cpp
@@ -93,11 +93,7 @@ sk_sp<SkSpecialImage> SkImageSource::onFilterImage(SkSpecialImage* source, const
 
     const SkIRect dstIRect = dstRect.roundOut();
 
-    // SRGBTODO: Propagate SkColorType?
-    const SkImageInfo info = SkImageInfo::MakeN32(dstIRect.width(), dstIRect.height(),
-                                                  kPremul_SkAlphaType);
-
-    sk_sp<SkSpecialSurface> surf(source->makeSurface(info));
+    sk_sp<SkSpecialSurface> surf(source->makeSurface(ctx.outputProperties(), dstIRect.size()));
     if (!surf) {
         return nullptr;
     }