Cleanup more test code.

chrome/test/sync/engine/test_directory_setter_upper.cc

Index: chrome/test/sync/engine/test_directory_setter_upper.cc
diff --git a/chrome/test/sync/engine/test_directory_setter_upper.cc b/chrome/test/sync/engine/test_directory_setter_upper.cc
index 9777b3239e89c00968e1da0f6e95f6b80f837d72..a0e4431cdf622bea0a5e464940e38e680fe8a2c4 100644
--- a/chrome/test/sync/engine/test_directory_setter_upper.cc
+++ b/chrome/test/sync/engine/test_directory_setter_upper.cc
@@ -1,4 +1,4 @@
-// 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.
 
@@ -125,6 +125,8 @@ MockDirectorySetterUpper::MockDirectorySetterUpper()
     : directory_(new MockDirectory(name())) {
 }
 
+MockDirectorySetterUpper::~MockDirectorySetterUpper() {}
+
 void MockDirectorySetterUpper::SetUp() {
   reset_directory_manager(new Manager(FilePath(), directory_.get()));
 }