fix memory leak introduced in 9e5f85e8

R=sugoi@chromium.org, robertphillips@google.com

Author: halcanary@google.com

Review URL: https://codereview.chromium.org/199173002

git-svn-id: http://skia.googlecode.com/svn/trunk@13786 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tests/SerializationTest.cpp b/tests/SerializationTest.cpp
index f3dafc8..2ddd368 100644
--- a/tests/SerializationTest.cpp
+++ b/tests/SerializationTest.cpp
@@ -383,7 +383,8 @@
 
         // Deserialize picture
         SkValidatingReadBuffer reader(data, size);
-        SkPicture* readPict(SkPicture::CreateFromBuffer(reader));
-        REPORTER_ASSERT(reporter, NULL != readPict);
+        SkAutoTUnref<SkPicture> readPict(
+            SkPicture::CreateFromBuffer(reader));
+        REPORTER_ASSERT(reporter, NULL != readPict.get());
     }
 }