Remove SkAutoTDelete.

Replace with std::unique_ptr.

Change-Id: I5806cfbb30515fcb20e5e66ce13fb5f3b8728176
Reviewed-on: https://skia-review.googlesource.com/4381
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>
diff --git a/src/codec/SkCodecImageGenerator.h b/src/codec/SkCodecImageGenerator.h
index 22a39aa..3abc908 100644
--- a/src/codec/SkCodecImageGenerator.h
+++ b/src/codec/SkCodecImageGenerator.h
@@ -36,7 +36,7 @@
      */
     SkCodecImageGenerator(SkCodec* codec, sk_sp<SkData>);
 
-    SkAutoTDelete<SkCodec> fCodec;
+    std::unique_ptr<SkCodec> fCodec;
     sk_sp<SkData> fData;
 
     typedef SkImageGenerator INHERITED;