Revert of switch colorfilters to sk_sp

gm/megalooper.cpp

Index: gm/megalooper.cpp
diff --git a/gm/megalooper.cpp b/gm/megalooper.cpp
index 6f5640272fc068de9f84b80341c69c3c8c77b7c3..5fe9af298b0d751eb7966b7ec9f3067ab12490a5 100644
--- a/gm/megalooper.cpp
+++ b/gm/megalooper.cpp
@@ -175,7 +175,8 @@
 
         paint->setMaskFilter(this->createBlur())->unref();
 
-        paint->setColorFilter(SkColorFilter::MakeModeFilter(color, SkXfermode::kSrcIn_Mode));
+        SkColorFilter* cf = SkColorFilter::CreateModeFilter(color, SkXfermode::kSrcIn_Mode);
+        paint->setColorFilter(cf)->unref();
 
         return looperBuilder.detach();
     }
@@ -221,8 +222,8 @@
 
             paint->setMaskFilter(this->createBlur())->unref();
 
-            paint->setColorFilter(SkColorFilter::MakeModeFilter(gColors[i],
-                                                                SkXfermode::kSrcIn_Mode));
+            SkColorFilter* cf = SkColorFilter::CreateModeFilter(gColors[i], SkXfermode::kSrcIn_Mode);
+            paint->setColorFilter(cf)->unref();
         }
 
         return looperBuilder.detach();