Add thread annotation macros with RTC_ prefix.

webrtc/rtc_base/thread_checker_unittest.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 223 matching lines @@
     RTC_DCHECK_RUN_ON(thread_);
     function();
   }
 
   void access_fun_and_var() {
     RTC_DCHECK_RUN_ON(thread_);
     fun_acccess_var();
   }
 
  private:
-  void function() RUN_ON(thread_) {}
-  void fun_acccess_var() RUN_ON(thread_) { var_thread_ = 13; }
+  void function() RTC_RUN_ON(thread_) {}
+  void fun_acccess_var() RTC_RUN_ON(thread_) { var_thread_ = 13; }
 
   rtc::Thread* thread_;
   rtc::ThreadChecker checker_;
   rtc::TaskQueue* queue_;
 
-  int var_thread_ ACCESS_ON(thread_);
-  int var_checker_ GUARDED_BY(checker_);
-  int var_queue_ ACCESS_ON(queue_);
+  int var_thread_ RTC_ACCESS_ON(thread_);
+  int var_checker_ RTC_GUARDED_BY(checker_);
+  int var_queue_ RTC_ACCESS_ON(queue_);
 };
 
 // Just in case we ever get lumped together with other compilation units.
 #undef ENABLE_THREAD_CHECKER
 
 }  // namespace rtc