switch colorfilters to sk_sp

src/core/SkDevice.cpp

Index: src/core/SkDevice.cpp
diff --git a/src/core/SkDevice.cpp b/src/core/SkDevice.cpp
index 90be52b403e4e5a40b161b8879afac1e169738dc..fb4b48fdbd4376614c937bb2e8246aeda9510cff 100644
--- a/src/core/SkDevice.cpp
+++ b/src/core/SkDevice.cpp
@@ -207,8 +207,7 @@ void SkBaseDevice::drawAtlas(const SkDraw& draw, const SkImage* atlas, const SkR
         pnt.setShader(std::move(shader));
 
         if (colors) {
-            SkAutoTUnref<SkColorFilter> cf(SkColorFilter::CreateModeFilter(colors[i], mode));
-            pnt.setColorFilter(cf);
+            pnt.setColorFilter(SkColorFilter::MakeModeFilter(colors[i], mode));
         }
         
         path.rewind();