Switch SkLocalMatrixImageFilter and SkPaintImageFilter over to sk_sp

gm/localmatriximagefilter.cpp

Index: gm/localmatriximagefilter.cpp
diff --git a/gm/localmatriximagefilter.cpp b/gm/localmatriximagefilter.cpp
index d53380b85856957c2ac90232c6a6e19b186f76bf..5414fe341cc0a3a89f08d53a8a74e3370630ed62 100644
--- a/gm/localmatriximagefilter.cpp
+++ b/gm/localmatriximagefilter.cpp
@@ -49,7 +49,7 @@ protected:
         return SkISize::Make(640, 640);
     }
 
-    static void show_image(SkCanvas* canvas, SkImage* image, SkImageFilter* filter) {
+    static void show_image(SkCanvas* canvas, SkImage* image, sk_sp<SkImageFilter> filter) {
         SkPaint paint;
         paint.setStyle(SkPaint::kStroke_Style);
         SkRect r = SkRect::MakeIWH(image->width(), image->height()).makeOutset(SK_ScalarHalf,
@@ -81,14 +81,14 @@ protected:
 
         canvas->translate(40, 40);
         for (auto&& factory : factories) {
-            SkAutoTUnref<SkImageFilter> filter(factory());
+            sk_sp<SkImageFilter> filter(factory());
 
             canvas->save();
             show_image(canvas, image0.get(), filter);
             for (const auto& matrix : matrices) {
-                SkAutoTUnref<SkImageFilter> localFilter(filter->newWithLocalMatrix(matrix));
+                sk_sp<SkImageFilter> localFilter(filter->makeWithLocalMatrix(matrix));
                 canvas->translate(spacer, 0);
-                show_image(canvas, image0.get(), localFilter);
+                show_image(canvas, image0.get(), std::move(localFilter));
             }
             canvas->restore();
             canvas->translate(0, spacer);