Update thread annotiation macros in modules to use RTC_ prefix

webrtc/modules/audio_processing/gain_control_impl.h

Index: webrtc/modules/audio_processing/gain_control_impl.h
diff --git a/webrtc/modules/audio_processing/gain_control_impl.h b/webrtc/modules/audio_processing/gain_control_impl.h
index 03bb5fa7d2cd49c45d60a6170fab1b9881dafbbd..8fca6996949872bf94ea3255e7aa48ea7b4069a5 100644
--- a/webrtc/modules/audio_processing/gain_control_impl.h
+++ b/webrtc/modules/audio_processing/gain_control_impl.h
@@ -67,27 +67,27 @@ class GainControlImpl : public GainControl {
 
   int Configure();
 
-  rtc::CriticalSection* const crit_render_ ACQUIRED_BEFORE(crit_capture_);
+  rtc::CriticalSection* const crit_render_ RTC_ACQUIRED_BEFORE(crit_capture_);
   rtc::CriticalSection* const crit_capture_;
 
   std::unique_ptr<ApmDataDumper> data_dumper_;
 
   bool enabled_ = false;
 
-  Mode mode_ GUARDED_BY(crit_capture_);
-  int minimum_capture_level_ GUARDED_BY(crit_capture_);
-  int maximum_capture_level_ GUARDED_BY(crit_capture_);
-  bool limiter_enabled_ GUARDED_BY(crit_capture_);
-  int target_level_dbfs_ GUARDED_BY(crit_capture_);
-  int compression_gain_db_ GUARDED_BY(crit_capture_);
-  int analog_capture_level_ GUARDED_BY(crit_capture_);
-  bool was_analog_level_set_ GUARDED_BY(crit_capture_);
-  bool stream_is_saturated_ GUARDED_BY(crit_capture_);
+  Mode mode_ RTC_GUARDED_BY(crit_capture_);
+  int minimum_capture_level_ RTC_GUARDED_BY(crit_capture_);
+  int maximum_capture_level_ RTC_GUARDED_BY(crit_capture_);
+  bool limiter_enabled_ RTC_GUARDED_BY(crit_capture_);
+  int target_level_dbfs_ RTC_GUARDED_BY(crit_capture_);
+  int compression_gain_db_ RTC_GUARDED_BY(crit_capture_);
+  int analog_capture_level_ RTC_GUARDED_BY(crit_capture_);
+  bool was_analog_level_set_ RTC_GUARDED_BY(crit_capture_);
+  bool stream_is_saturated_ RTC_GUARDED_BY(crit_capture_);
 
   std::vector<std::unique_ptr<GainController>> gain_controllers_;
 
-  rtc::Optional<size_t> num_proc_channels_ GUARDED_BY(crit_capture_);
-  rtc::Optional<int> sample_rate_hz_ GUARDED_BY(crit_capture_);
+  rtc::Optional<size_t> num_proc_channels_ RTC_GUARDED_BY(crit_capture_);
+  rtc::Optional<int> sample_rate_hz_ RTC_GUARDED_BY(crit_capture_);
 
   static int instance_counter_;
   RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(GainControlImpl);