Add newlines to the end of files where they were missing

base/test/unit_test_launcher.h

 // Copyright 2013 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.
 
 #ifndef BASE_TEST_UNIT_TEST_LAUNCHER_H_
 #define BASE_TEST_UNIT_TEST_LAUNCHER_H_
 
 #include "base/callback.h"
 
 namespace base {
 
 // Callback that runs a test suite and returns exit code.
 typedef base::Callback<int(void)> RunTestSuiteCallback;
 
 // Launches unit tests in given test suite. Returns exit code.
 int LaunchUnitTests(int argc,
                     char** argv,
                     const RunTestSuiteCallback& run_test_suite);
 
 }   // namespace base
 
-#endif  // BASE_TEST_UNIT_TEST_LAUNCHER_H_
+#endif  // BASE_TEST_UNIT_TEST_LAUNCHER_H_