tools: s/SkAutoTUnref/sk_sp/

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4391

Change-Id: Iae8b032b00d3579c77f3b86370dde71c4649da45
Reviewed-on: https://skia-review.googlesource.com/4391
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
diff --git a/tools/debugger/SkDrawCommand.h b/tools/debugger/SkDrawCommand.h
index 54ee3c6..144c6c5 100644
--- a/tools/debugger/SkDrawCommand.h
+++ b/tools/debugger/SkDrawCommand.h
@@ -356,10 +356,10 @@
     static SkDrawImageCommand* fromJSON(Json::Value& command, UrlDataManager& urlDataManager);
 
 private:
-    SkAutoTUnref<const SkImage> fImage;
-    SkScalar                    fLeft;
-    SkScalar                    fTop;
-    SkTLazy<SkPaint>            fPaint;
+    sk_sp<const SkImage> fImage;
+    SkScalar             fLeft;
+    SkScalar             fTop;
+    SkTLazy<SkPaint>     fPaint;
 
     typedef SkDrawCommand INHERITED;
 };
@@ -374,7 +374,7 @@
     static SkDrawImageRectCommand* fromJSON(Json::Value& command, UrlDataManager& urlDataManager);
 
 private:
-    SkAutoTUnref<const SkImage> fImage;
+    sk_sp<const SkImage>        fImage;
     SkTLazy<SkRect>             fSrc;
     SkRect                      fDst;
     SkTLazy<SkPaint>            fPaint;
@@ -456,9 +456,9 @@
     bool render(SkCanvas* canvas) const override;
 
 private:
-    SkAutoTUnref<const SkPicture> fPicture;
-    SkTLazy<SkMatrix>             fMatrix;
-    SkTLazy<SkPaint>              fPaint;
+    sk_sp<const SkPicture> fPicture;
+    SkTLazy<SkMatrix>      fMatrix;
+    SkTLazy<SkPaint>       fPaint;
 
     typedef SkDrawCommand INHERITED;
 };
@@ -486,7 +486,7 @@
     bool render(SkCanvas* canvas) const override;
 
 private:
-    SkAutoTUnref<const SkPicture> fPicture;
+    sk_sp<const SkPicture>        fPicture;
     SkTLazy<SkMatrix>             fMatrix;
     SkTLazy<SkPaint>              fPaint;
 #ifdef SK_EXPERIMENTAL_SHADOWING