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/gm/encode-platform.cpp b/gm/encode-platform.cpp
index 90f6aa9..09b64cc 100644
--- a/gm/encode-platform.cpp
+++ b/gm/encode-platform.cpp
@@ -96,7 +96,7 @@
         make_unpremul_256(&unpremulBm);
 
         for (SkImageEncoder::Type type : kTypes) {
-            SkAutoTDelete<SkImageEncoder> encoder(make_encoder(type));
+            std::unique_ptr<SkImageEncoder> encoder(make_encoder(type));
             sk_sp<SkData> opaqueData(encoder->encodeData(opaqueBm, 100));
             sk_sp<SkData> premulData(encoder->encodeData(premulBm, 100));
             sk_sp<SkData> unpremulData(encoder->encodeData(unpremulBm, 100));