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/video_coding/video_codec_initializer.cc b/modules/video_coding/video_codec_initializer.cc
index 51131ed..3e1b0e1 100644
--- a/modules/video_coding/video_codec_initializer.cc
+++ b/modules/video_coding/video_codec_initializer.cc
@@ -131,7 +131,8 @@
           streams.back().temporal_layer_thresholds_bps.size() + 1);
 
       if (nack_enabled && !TemporalLayersConfigured(streams)) {
-        LOG(LS_INFO) << "No temporal layers and nack enabled -> resilience off";
+        RTC_LOG(LS_INFO)
+            << "No temporal layers and nack enabled -> resilience off";
         video_codec.VP8()->resilience = kResilienceOff;
       }
       break;
@@ -151,8 +152,8 @@
 
       if (nack_enabled && !TemporalLayersConfigured(streams) &&
           video_codec.VP9()->numberOfSpatialLayers == 1) {
-        LOG(LS_INFO) << "No temporal or spatial layers and nack enabled -> "
-                     << "resilience off";
+        RTC_LOG(LS_INFO) << "No temporal or spatial layers and nack enabled -> "
+                         << "resilience off";
         video_codec.VP9()->resilienceOn = false;
       }
       break;