Cleanup: Fix base header include guards.

base/trace_event/trace_event_etw_export_win.h

 // Copyright 2015 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.
 
 // This file contains the Windows-specific exporting to ETW.
-#ifndef BASE_TRACE_EVENT_TRACE_ETW_EXPORT_H_
-#define BASE_TRACE_EVENT_TRACE_ETW_EXPORT_H_
+#ifndef BASE_TRACE_EVENT_TRACE_EVENT_ETW_EXPORT_WIN_H_
+#define BASE_TRACE_EVENT_TRACE_EVENT_ETW_EXPORT_WIN_H_
 
 #include "base/base_export.h"
 #include "base/trace_event/trace_event_impl.h"
 
 // Fwd.
 template <typename Type>
 struct StaticMemorySingletonTraits;
 
 namespace base {
 namespace trace_event {
@@ skipping 47 matching lines @@
   // Ensure only the provider can construct us.
   friend struct StaticMemorySingletonTraits<TraceEventETWExport>;
   TraceEventETWExport();
 
   DISALLOW_COPY_AND_ASSIGN(TraceEventETWExport);
 };
 
 }  // namespace trace_event
 }  // namespace base
 
-#endif  // BASE_TRACE_EVENT_TRACE_ETW_EXPORT_H_
+#endif  // BASE_TRACE_EVENT_TRACE_EVENT_ETW_EXPORT_WIN_H_