system_wrappers: rename interface -> include

webrtc/system_wrappers/include/ref_count.h

 /*
  *  Copyright (c) 2012 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 SYSTEM_WRAPPERS_INTERFACE_REF_COUNT_H_
 #define SYSTEM_WRAPPERS_INTERFACE_REF_COUNT_H_
 
-#include "webrtc/system_wrappers/interface/atomic32.h"
+#include "webrtc/system_wrappers/include/atomic32.h"
 
 namespace webrtc {
 
 // This class can be used for instantiating
 // reference counted objects.
 // int32_t AddRef() and int32_t Release().
 // Usage:
 // RefCountImpl<T>* implementation = new RefCountImpl<T>(p);
 //
 // Example:
@@ skipping 48 matching lines @@
     return ref_count;
   }
 
  protected:
   mutable Atomic32 ref_count_;
 };
 
 }  // namespace webrtc
 
 #endif  // SYSTEM_WRAPPERS_INTERFACE_REF_COUNT_H_