Enable -Wunused-local-typedef

base/memory/scoped_ptr_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/memory/scoped_ptr.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/callback.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 651 matching lines @@
     inline void operator()(int* x) { delete x; }
   };
   scoped_ptr<int, CustomDeleter> x(new int);
   EXPECT_DEATH(x.reset(x.get()), "");
 }
 #endif
 
 TEST(ScopedPtrTest, SelfResetWithCustomDeleterOptOut) {
   // A custom deleter should be able to opt out of self-reset abort behavior.
   struct NoOpDeleter {
+#if !defined(NDEBUG)
     typedef void AllowSelfReset;
+#endif
     inline void operator()(int*) {}
   };
   scoped_ptr<int> owner(new int);
   scoped_ptr<int, NoOpDeleter> x(owner.get());
   x.reset(x.get());
 }