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

src/effects/SkDropShadowImageFilter.cpp

Index: src/effects/SkDropShadowImageFilter.cpp
diff --git a/src/effects/SkDropShadowImageFilter.cpp b/src/effects/SkDropShadowImageFilter.cpp
index b4b8cac4f0c95a9b0f5b1e6b60d80bd345d9010a..5befe711942746819abd8ce579ec9a540fdd67b2 100644
--- a/src/effects/SkDropShadowImageFilter.cpp
+++ b/src/effects/SkDropShadowImageFilter.cpp
@@ -77,7 +77,9 @@
         return nullptr;
     }
 
-    sk_sp<SkSpecialSurface> surf(source->makeSurface(ctx.outputProperties(), bounds.size()));
+    const SkImageInfo info = SkImageInfo::MakeN32(bounds.width(), bounds.height(),
+                                                  kPremul_SkAlphaType);
+    sk_sp<SkSpecialSurface> surf(source->makeSurface(info));
     if (!surf) {
         return nullptr;
     }