Cleanup more test code.

chrome/test/sync/engine/test_directory_setter_upper.h

-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 //
 // A handy class that takes care of setting up and destroying a
 // syncable::Directory instance for unit tests that require one.
 //
 // The expected usage is to make this a component of your test fixture:
 //
 //   class AwesomenessTest : public testing::Test {
 //    public:
@@ skipping 102 matching lines @@
   };
 
   class MockDirectory : public syncable::Directory {
    public:
     explicit MockDirectory(const std::string& name);
     virtual ~MockDirectory();
     MOCK_METHOD1(PurgeEntriesWithTypeIn, void(const syncable::ModelTypeSet&));
   };
 
   MockDirectorySetterUpper();
+  virtual ~MockDirectorySetterUpper();
 
   virtual void SetUp();
   virtual void TearDown();
   MockDirectory* directory() { return directory_.get(); }
 
  private:
   scoped_ptr<MockDirectory> directory_;
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_TEST_SYNC_ENGINE_TEST_DIRECTORY_SETTER_UPPER_H_