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/tools/skdiff/skdiff_utils.cpp b/tools/skdiff/skdiff_utils.cpp
index 609d75d..f788ec8 100644
--- a/tools/skdiff/skdiff_utils.cpp
+++ b/tools/skdiff/skdiff_utils.cpp
@@ -34,7 +34,7 @@
 }
 
 bool get_bitmap(sk_sp<SkData> fileBits, DiffResource& resource, bool sizeOnly) {
-    SkAutoTDelete<SkCodec> codec(SkCodec::NewFromData(fileBits));
+    std::unique_ptr<SkCodec> codec(SkCodec::NewFromData(fileBits));
     if (!codec) {
         SkDebugf("ERROR: could not create codec for <%s>\n", resource.fFullPath.c_str());
         resource.fStatus = DiffResource::kCouldNotDecode_Status;