Move ThreadWrapper to ProcessThread in base.

webrtc/system_wrappers/source/thread_posix.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 WEBRTC_SYSTEM_WRAPPERS_SOURCE_THREAD_POSIX_H_
-#define WEBRTC_SYSTEM_WRAPPERS_SOURCE_THREAD_POSIX_H_
-
-#include "webrtc/base/event.h"
-#include "webrtc/base/scoped_ptr.h"
-#include "webrtc/base/thread_checker.h"
-#include "webrtc/system_wrappers/include/thread_wrapper.h"
-
-#include <pthread.h>
-
-namespace webrtc {
-
-int ConvertToSystemPriority(ThreadPriority priority, int min_prio,
-                            int max_prio);
-
-class ThreadPosix : public ThreadWrapper {
- public:
-  ThreadPosix(ThreadRunFunction func, void* obj, const char* thread_name);
-  ~ThreadPosix() override;
-
-  // From ThreadWrapper.
-  bool Start() override;
-  bool Stop() override;
-
-  bool SetPriority(ThreadPriority priority) override;
-
- private:
-  static void* StartThread(void* param);
-
-  void Run();
-
-  rtc::ThreadChecker thread_checker_;
-  ThreadRunFunction const run_function_;
-  void* const obj_;
-  rtc::Event stop_event_;
-  const std::string name_;
-
-  pthread_t thread_;
-};
-
-}  // namespace webrtc
-
-#endif  // WEBRTC_SYSTEM_WRAPPERS_SOURCE_THREAD_POSIX_H_