Move webrtc/{base => rtc_base}

webrtc/rtc_base/thread_checker_impl.cc

 /*
  *  Copyright (c) 2014 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.
  */
 
@@ skipping 18 matching lines @@
     valid_thread_ = current_thread;
   return IsThreadRefEqual(valid_thread_, current_thread);
 }
 
 void ThreadCheckerImpl::DetachFromThread() {
   CritScope scoped_lock(&lock_);
   valid_thread_ = 0;
 }
 
 }  // namespace rtc