Revert "Update includes for webrtc/{base => rtc_base} rename (2/3)"

webrtc/system_wrappers/source/event_timer_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_EVENT_POSIX_H_
 #define WEBRTC_SYSTEM_WRAPPERS_SOURCE_EVENT_POSIX_H_
 
 #include "webrtc/system_wrappers/include/event_wrapper.h"
 
 #include <memory>
 
 #include <pthread.h>
 #include <time.h>
 
-#include "webrtc/rtc_base/platform_thread.h"
+#include "webrtc/base/platform_thread.h"
 
 namespace webrtc {
 
 enum State {
   kUp = 1,
   kDown = 2
 };
 
 class EventTimerPosix : public EventTimerWrapper {
  public:
@@ skipping 26 matching lines @@
 
   bool          periodic_;
   unsigned long time_ms_;
   unsigned long count_;
   bool is_stopping_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_SYSTEM_WRAPPERS_SOURCE_EVENT_POSIX_H_