Remove ConditionVariableWrapper.

webrtc/system_wrappers/include/condition_variable_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_INCLUDE_CONDITION_VARIABLE_WRAPPER_H_
-#define WEBRTC_SYSTEM_WRAPPERS_INCLUDE_CONDITION_VARIABLE_WRAPPER_H_
-
-// TODO(tommi): Remove completely.  As is there is still some code for Windows
-// that relies on ConditionVariableWrapper, but code has been removed on other
-// platforms.
-#if defined(WEBRTC_WIN)
-
-namespace webrtc {
-
-class CriticalSectionWrapper;
-
-class ConditionVariableWrapper {
- public:
-  // Factory method, constructor disabled.
-  static ConditionVariableWrapper* CreateConditionVariable();
-
-  virtual ~ConditionVariableWrapper() {}
-
-  // Calling thread will atomically release crit_sect and wait until next
-  // some other thread calls Wake() or WakeAll().
-  virtual void SleepCS(CriticalSectionWrapper& crit_sect) = 0;
-
-  // Same as above but with a timeout.
-  virtual bool SleepCS(CriticalSectionWrapper& crit_sect,
-                       unsigned long max_time_in_ms) = 0;
-
-  // Wakes one thread calling SleepCS().
-  virtual void Wake() = 0;
-
-  // Wakes all threads calling SleepCS().
-  virtual void WakeAll() = 0;
-};
-
-}  // namespace webrtc
-
-#endif  // defined(WEBRTC_WIN)
-
-#endif  // WEBRTC_SYSTEM_WRAPPERS_INCLUDE_CONDITION_VARIABLE_WRAPPER_H_