Update thread annotiation macros to use RTC_ prefix

webrtc/test/frame_generator.cc

 /*
  *  Copyright (c) 2013 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.
  */
 #include "webrtc/test/frame_generator.h"
@@ skipping 90 matching lines @@
     Random random_generator_;
     int x_;
     int y_;
     const int length_;
     const uint8_t yuv_y_;
     const uint8_t yuv_u_;
     const uint8_t yuv_v_;
   };
 
   rtc::CriticalSection crit_;
-  int width_ GUARDED_BY(&crit_);
-  int height_ GUARDED_BY(&crit_);
-  std::vector<std::unique_ptr<Square>> squares_ GUARDED_BY(&crit_);
-  std::unique_ptr<VideoFrame> frame_ GUARDED_BY(&crit_);
+  int width_ RTC_GUARDED_BY(&crit_);
+  int height_ RTC_GUARDED_BY(&crit_);
+  std::vector<std::unique_ptr<Square>> squares_ RTC_GUARDED_BY(&crit_);
+  std::unique_ptr<VideoFrame> frame_ RTC_GUARDED_BY(&crit_);
 };
 
 class YuvFileGenerator : public FrameGenerator {
  public:
   YuvFileGenerator(std::vector<FILE*> files,
                    size_t width,
                    size_t height,
                    int frame_repeat_count)
       : file_index_(0),
         files_(files),
@@ skipping 316 matching lines @@
     files.push_back(file);
   }
 
   return std::unique_ptr<FrameGenerator>(new ScrollingImageFrameGenerator(
       clock, files, source_width, source_height, target_width, target_height,
       scroll_time_ms, pause_time_ms));
 }
 
 }  // namespace test
 }  // namespace webrtc