Stop using LOG macros in favor of RTC_ prefixed macros.

This CL has been generated with the following script:

for m in PLOG \
  LOG_TAG \
  LOG_GLEM \
  LOG_GLE_EX \
  LOG_GLE \
  LAST_SYSTEM_ERROR \
  LOG_ERRNO_EX \
  LOG_ERRNO \
  LOG_ERR_EX \
  LOG_ERR \
  LOG_V \
  LOG_F \
  LOG_T_F \
  LOG_E \
  LOG_T \
  LOG_CHECK_LEVEL_V \
  LOG_CHECK_LEVEL \
  LOG
do
  git grep -l $m | xargs sed -i "s,\b$m\b,RTC_$m,g"
done
git checkout rtc_base/logging.h
git cl format

Bug: webrtc:8452
Change-Id: I1a53ef3e0a5ef6e244e62b2e012b864914784600
Reviewed-on: https://webrtc-review.googlesource.com/21325
Reviewed-by: Niels Moller <nisse@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20617}
diff --git a/modules/audio_processing/level_controller/level_controller.cc b/modules/audio_processing/level_controller/level_controller.cc
index a600ac7..6343ef7 100644
--- a/modules/audio_processing/level_controller/level_controller.cc
+++ b/modules/audio_processing/level_controller/level_controller.cc
@@ -156,21 +156,21 @@
     const int frame_peak_level_dbfs = static_cast<int>(
         10 * log10(frame_peak_level * frame_peak_level + 1e-10f) - kdBFSOffset);
 
-    LOG(LS_INFO) << "Level Controller metrics: {"
-                 << "Max noise power: " << max_noise_power_dbfs << " dBFS, "
-                 << "Average noise power: " << average_noise_power_dbfs
-                 << " dBFS, "
-                 << "Max long term peak level: " << max_peak_level_dbfs
-                 << " dBFS, "
-                 << "Average long term peak level: " << average_peak_level_dbfs
-                 << " dBFS, "
-                 << "Max gain: " << max_gain_db << " dB, "
-                 << "Average gain: " << average_gain_db << " dB, "
-                 << "Long term peak level: " << long_term_peak_level_dbfs
-                 << " dBFS, "
-                 << "Last frame peak level: " << frame_peak_level_dbfs
-                 << " dBFS"
-                 << "}";
+    RTC_LOG(LS_INFO) << "Level Controller metrics: {"
+                     << "Max noise power: " << max_noise_power_dbfs << " dBFS, "
+                     << "Average noise power: " << average_noise_power_dbfs
+                     << " dBFS, "
+                     << "Max long term peak level: " << max_peak_level_dbfs
+                     << " dBFS, "
+                     << "Average long term peak level: "
+                     << average_peak_level_dbfs << " dBFS, "
+                     << "Max gain: " << max_gain_db << " dB, "
+                     << "Average gain: " << average_gain_db << " dB, "
+                     << "Long term peak level: " << long_term_peak_level_dbfs
+                     << " dBFS, "
+                     << "Last frame peak level: " << frame_peak_level_dbfs
+                     << " dBFS"
+                     << "}";
 
     Reset();
   }