Update thread annotiation macros in rtc_base to use RTC_ prefix

webrtc/rtc_base/swap_queue.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.
  */
 
@@ skipping 174 matching lines @@
     for (const auto& v : queue_) {
       RTC_DCHECK(queue_item_verifier_(v));
     }
     return true;
   }
 
   rtc::CriticalSection crit_queue_;
 
   // TODO(peah): Change this to use std::function() once we can use C++11 std
   // lib.
-  QueueItemVerifier queue_item_verifier_ GUARDED_BY(crit_queue_);
+  QueueItemVerifier queue_item_verifier_ RTC_GUARDED_BY(crit_queue_);
 
   // (next_read_index_ + num_elements_) % queue_.size() =
   //  next_write_index_
-  size_t next_write_index_ GUARDED_BY(crit_queue_) = 0;
-  size_t next_read_index_ GUARDED_BY(crit_queue_) = 0;
-  size_t num_elements_ GUARDED_BY(crit_queue_) = 0;
+  size_t next_write_index_ RTC_GUARDED_BY(crit_queue_) = 0;
+  size_t next_read_index_ RTC_GUARDED_BY(crit_queue_) = 0;
+  size_t num_elements_ RTC_GUARDED_BY(crit_queue_) = 0;
 
   // queue_.size() is constant.
-  std::vector<T> queue_ GUARDED_BY(crit_queue_);
+  std::vector<T> queue_ RTC_GUARDED_BY(crit_queue_);
 
   RTC_DISALLOW_COPY_AND_ASSIGN(SwapQueue);
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_RTC_BASE_SWAP_QUEUE_H_