Add newlines to the end of files where they were missing

base/barrier_closure.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_BARRIER_CLOSURE_H_
 #define BASE_BARRIER_CLOSURE_H_
 
 #include "base/base_export.h"
 #include "base/callback_forward.h"
 
 namespace base {
 
 // BarrierClosure executes |done_closure| after it has been invoked
 // |num_closures| times.
 //
 // If |num_closures| is 0, |done_closure| is executed immediately.
 //
 // BarrierClosure is thread-safe - the count of remaining closures is
 // maintained as a base::AtomicRefCount. |done_closure| will be run on
 // the thread that calls the final Run() on the returned closures.
 //
 // |done_closure| is also Reset() on the final calling thread but due to the
 // refcounted nature of callbacks, it is hard to know what thread resources
 // will be released on.
 BASE_EXPORT base::Closure BarrierClosure(int num_closures,
                                          const base::Closure& done_closure);
 
 }  // namespace base
 
-#endif  // BASE_BARRIER_CLOSURE_H_
+#endif  // BASE_BARRIER_CLOSURE_H_