Fix leak in ResourceCache test

tests/ResourceCacheTest.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 // Include here to ensure SK_SUPPORT_GPU is set correctly before it is examined.
 #include "SkTypes.h"
 
@@ skipping 1235 matching lines @@
     REPORTER_ASSERT(reporter, key2.getCustomData() == nullptr);
 
     // Test that copying a key also takes a ref on its custom data.
     GrUniqueKey key3 = key1;
     REPORTER_ASSERT(reporter, *(int*) key3.getCustomData()->data() == 4132);
 }
 
 static void test_abandoned(skiatest::Reporter* reporter) {
     Mock mock(10, 300);
     GrContext* context = mock.context();
-    TestResource* resource = new TestResource(context->getGpu());
+    SkAutoTUnref<GrGpuResource> resource(new TestResource(context->getGpu()));
     context->abandonContext();
 
     REPORTER_ASSERT(reporter, resource->wasDestroyed());
 
     // Call all the public methods on resource in the abandoned state. They shouldn't crash.
 
     int foo = 4132;
     SkAutoTUnref<SkData> data(SkData::NewWithCopy(&foo, sizeof(foo)));
     resource->setCustomData(data.get());
     resource->getCustomData();
@@ skipping 52 matching lines @@
     test_cache_chained_purge(reporter);
     test_resource_size_changed(reporter);
     test_timestamp_wrap(reporter);
     test_flush(reporter);
     test_large_resource_count(reporter);
     test_custom_data(reporter);
     test_abandoned(reporter);
 }
 
 #endif