system_wrappers: rename interface -> include

webrtc/system_wrappers/source/critical_section_posix.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_SOURCE_CRITICAL_SECTION_POSIX_H_
 #define WEBRTC_SYSTEM_WRAPPERS_SOURCE_CRITICAL_SECTION_POSIX_H_
 
-#include "webrtc/system_wrappers/interface/critical_section_wrapper.h"
+#include "webrtc/system_wrappers/include/critical_section_wrapper.h"
 
 #include <pthread.h>
 
 namespace webrtc {
 
 class CriticalSectionPosix : public CriticalSectionWrapper {
  public:
   CriticalSectionPosix();
 
   ~CriticalSectionPosix() override;
 
   void Enter() override;
   void Leave() override;
 
  private:
   pthread_mutex_t mutex_;
   friend class ConditionVariablePosix;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_SYSTEM_WRAPPERS_SOURCE_CRITICAL_SECTION_POSIX_H_