system_wrappers: rename interface -> include

webrtc/system_wrappers/interface/critical_section_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_CRITICAL_SECTION_WRAPPER_H_
-#define WEBRTC_SYSTEM_WRAPPERS_INTERFACE_CRITICAL_SECTION_WRAPPER_H_
-
-// If the critical section is heavily contended it may be beneficial to use
-// read/write locks instead.
-
-#include "webrtc/base/thread_annotations.h"
-#include "webrtc/common_types.h"
-
-namespace webrtc {
-class LOCKABLE CriticalSectionWrapper {
- public:
-  // Factory method, constructor disabled
-  static CriticalSectionWrapper* CreateCriticalSection();
-
-  virtual ~CriticalSectionWrapper() {}
-
-  // Tries to grab lock, beginning of a critical section. Will wait for the
-  // lock to become available if the grab failed.
-  virtual void Enter() EXCLUSIVE_LOCK_FUNCTION() = 0;
-
-  // Returns a grabbed lock, end of critical section.
-  virtual void Leave() UNLOCK_FUNCTION() = 0;
-};
-
-// RAII extension of the critical section. Prevents Enter/Leave mismatches and
-// provides more compact critical section syntax.
-class SCOPED_LOCKABLE CriticalSectionScoped {
- public:
-  explicit CriticalSectionScoped(CriticalSectionWrapper* critsec)
-      EXCLUSIVE_LOCK_FUNCTION(critsec)
-      : ptr_crit_sec_(critsec) {
-    ptr_crit_sec_->Enter();
-  }
-
-  ~CriticalSectionScoped() UNLOCK_FUNCTION() { ptr_crit_sec_->Leave(); }
-
- private:
-  CriticalSectionWrapper* ptr_crit_sec_;
-};
-
-}  // namespace webrtc
-
-#endif  // WEBRTC_SYSTEM_WRAPPERS_INTERFACE_CRITICAL_SECTION_WRAPPER_H_