Update thread annotiation macros to use RTC_ prefix

webrtc/media/base/videoadapter.h

 /*
  *  Copyright (c) 2010 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 57 matching lines @@
 
   int frames_in_;         // Number of input frames.
   int frames_out_;        // Number of output frames.
   int frames_scaled_;     // Number of frames scaled.
   int adaption_changes_;  // Number of changes in scale factor.
   int previous_width_;    // Previous adapter output width.
   int previous_height_;   // Previous adapter output height.
   // Resolution must be divisible by this factor.
   const int required_resolution_alignment_;
   // The target timestamp for the next frame based on requested format.
-  rtc::Optional<int64_t> next_frame_timestamp_ns_ GUARDED_BY(critical_section_);
+  rtc::Optional<int64_t> next_frame_timestamp_ns_
+      RTC_GUARDED_BY(critical_section_);
 
   // Max number of pixels requested via calls to OnOutputFormatRequest,
   // OnResolutionRequest respectively.
   // The adapted output format is the minimum of these.
-  rtc::Optional<VideoFormat> requested_format_ GUARDED_BY(critical_section_);
-  int resolution_request_target_pixel_count_ GUARDED_BY(critical_section_);
-  int resolution_request_max_pixel_count_ GUARDED_BY(critical_section_);
-  int max_framerate_request_ GUARDED_BY(critical_section_);
+  rtc::Optional<VideoFormat> requested_format_
+      RTC_GUARDED_BY(critical_section_);
+  int resolution_request_target_pixel_count_ RTC_GUARDED_BY(critical_section_);
+  int resolution_request_max_pixel_count_ RTC_GUARDED_BY(critical_section_);
+  int max_framerate_request_ RTC_GUARDED_BY(critical_section_);
 
   // The critical section to protect the above variables.
   rtc::CriticalSection critical_section_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(VideoAdapter);
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_MEDIA_BASE_VIDEOADAPTER_H_