system_wrappers: Fix include header guards.

webrtc/system_wrappers/include/file_wrapper.h

 /*
  *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#ifndef WEBRTC_SYSTEM_WRAPPERS_INTERFACE_FILE_WRAPPER_H_
-#define WEBRTC_SYSTEM_WRAPPERS_INTERFACE_FILE_WRAPPER_H_
+#ifndef WEBRTC_SYSTEM_WRAPPERS_INCLUDE_FILE_WRAPPER_H_
+#define WEBRTC_SYSTEM_WRAPPERS_INCLUDE_FILE_WRAPPER_H_
 
 #include <stddef.h>
 #include <stdio.h>
 
 #include "webrtc/common_types.h"
 #include "webrtc/typedefs.h"
 
 // Implementation of an InStream and OutStream that can read (exclusive) or
 // write from/to a file.
 
@@ skipping 45 matching lines @@
 
   // Inherited from both Instream and OutStream.
   // Rewinds the file to the start. Only available when OpenFile() has been
   // called with |loop| == true or |readOnly| == true.
   // virtual int Rewind() = 0;
   int Rewind() override;
 };
 
 }  // namespace webrtc
 
-#endif  // WEBRTC_SYSTEM_WRAPPERS_INTERFACE_FILE_WRAPPER_H_
+#endif  // WEBRTC_SYSTEM_WRAPPERS_INCLUDE_FILE_WRAPPER_H_