update callsites for Make image factories

not forced yet, as we still have the build-guard. waiting on chrome CL

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1810813003

TBR=

Review URL: https://codereview.chromium.org/1810813003
diff --git a/samplecode/SampleTextureDomain.cpp b/samplecode/SampleTextureDomain.cpp
index 6557533..2c6dd64 100644
--- a/samplecode/SampleTextureDomain.cpp
+++ b/samplecode/SampleTextureDomain.cpp
@@ -67,7 +67,7 @@
         surface->getCanvas()->drawBitmapRect(fBM, srcRect, dstRect, &paint,
                                              SkCanvas::kStrict_SrcRectConstraint);
 
-        SkAutoTUnref<SkImage> image(surface->newImageSnapshot());
+        sk_sp<SkImage> image(surface->makeImageSnapshot());
 
         srcRect.setXYWH(1, 1, 3, 3);
         dstRect.setXYWH(405, 5, 305, 305);