switch colorfilters to sk_sp

src/effects/SkBlurDrawLooper.cpp

Index: src/effects/SkBlurDrawLooper.cpp
diff --git a/src/effects/SkBlurDrawLooper.cpp b/src/effects/SkBlurDrawLooper.cpp
index d8127eba4ee4d03b1bec0d80c45888453c1e1b41..c8e20e1265be4858ffb687d0deac50ac89edfc21 100644
--- a/src/effects/SkBlurDrawLooper.cpp
+++ b/src/effects/SkBlurDrawLooper.cpp
@@ -44,8 +44,7 @@ void SkBlurDrawLooper::initEffects() {
         // be baked into the blurred mask.
         SkColor opaqueColor = SkColorSetA(fBlurColor, 255);
         //The SrcIn xfer mode will multiply 'color' by the incoming alpha
-        fColorFilter = SkColorFilter::CreateModeFilter(opaqueColor,
-                                                       SkXfermode::kSrcIn_Mode);
+        fColorFilter = SkColorFilter::MakeModeFilter(opaqueColor, SkXfermode::kSrcIn_Mode);
     } else {
         fColorFilter = nullptr;
     }
@@ -81,7 +80,6 @@ void SkBlurDrawLooper::flatten(SkWriteBuffer& buffer) const {
 
 SkBlurDrawLooper::~SkBlurDrawLooper() {
     SkSafeUnref(fBlur);
-    SkSafeUnref(fColorFilter);
 }
 
 bool SkBlurDrawLooper::asABlurShadow(BlurShadowRec* rec) const {