Update SkBlurImageFilter to sk_sp

TBR=reed@google.com

GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1852743002

Review URL: https://codereview.chromium.org/1852743002
diff --git a/tests/RecordOptsTest.cpp b/tests/RecordOptsTest.cpp
index 242712d..4341b87 100644
--- a/tests/RecordOptsTest.cpp
+++ b/tests/RecordOptsTest.cpp
@@ -188,8 +188,8 @@
     REPORTER_ASSERT(r, drawRect->paint.getColor() == 0x03020202);
 
     // saveLayer w/ backdrop should NOT go away
-    SkAutoTUnref<SkImageFilter> filter(SkBlurImageFilter::Create(3, 3));
-    recorder.saveLayer({ nullptr, nullptr, filter, 0});
+    sk_sp<SkImageFilter> filter(SkBlurImageFilter::Make(3, 3, nullptr));
+    recorder.saveLayer({ nullptr, nullptr, filter.get(), 0});
         recorder.drawRect(draw, opaqueDrawPaint);
     recorder.restore();
     assert_savelayer_draw_restore(r, &record, 18, false);
@@ -244,7 +244,7 @@
     int index = 0;
 
     {
-        SkAutoTUnref<SkImageFilter> filter(SkBlurImageFilter::Create(3, 3));
+        sk_sp<SkImageFilter> filter(SkBlurImageFilter::Make(3, 3, nullptr));
         // first (null) should be optimized, 2nd should not
         SkImageFilter* filters[] = { nullptr, filter.get() };