Replace scoped_ptr with unique_ptr in webrtc/base/

webrtc/base/platform_thread.h

 /*
  *  Copyright (c) 2015 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_BASE_PLATFORM_THREAD_H_
 #define WEBRTC_BASE_PLATFORM_THREAD_H_
 
 #include <string>
 
 #include "webrtc/base/constructormagic.h"
 #include "webrtc/base/event.h"
 #include "webrtc/base/platform_thread_types.h"
-#include "webrtc/base/scoped_ptr.h"
 #include "webrtc/base/thread_checker.h"
 
 namespace rtc {
 
 PlatformThreadId CurrentThreadId();
 PlatformThreadRef CurrentThreadRef();
 
 // Compares two thread identifiers for equality.
 bool IsThreadRefEqual(const PlatformThreadRef& a, const PlatformThreadRef& b);
 
@@ skipping 74 matching lines @@
   rtc::Event stop_event_;
 
   pthread_t thread_;
 #endif  // defined(WEBRTC_WIN)
   RTC_DISALLOW_COPY_AND_ASSIGN(PlatformThread);
 };
 
 }  // namespace rtc
 
 #endif  // WEBRTC_BASE_PLATFORM_THREAD_H_