Update thread annotiation macros to use RTC_ prefix

webrtc/api/statstypes.h

 /*
  *  Copyright 2012 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 317 matching lines @@
     // Converts the native value to a string representation of the value.
     std::string ToString() const;
 
     Type type() const { return type_; }
 
     // TODO(tommi): Move |name| and |display_name| out of the Value struct.
     const StatsValueName name;
 
    private:
     rtc::ThreadChecker thread_checker_;
-    mutable int ref_count_ ACCESS_ON(thread_checker_) = 0;
+    mutable int ref_count_ RTC_ACCESS_ON(thread_checker_) = 0;
 
     const Type type_;
     // TODO(tommi): Use C++ 11 union and make value_ const.
     union InternalType {
       int int_;
       int64_t int64_;
       float float_;
       bool bool_;
       std::string* string_;
       const char* static_string_;
@@ skipping 86 matching lines @@
   StatsReport* Find(const StatsReport::Id& id);
 
  private:
   Container list_;
   rtc::ThreadChecker thread_checker_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_API_STATSTYPES_H_