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/decoding_state.cc b/modules/video_coding/decoding_state.cc
index 01ba860..23bf668 100644
--- a/modules/video_coding/decoding_state.cc
+++ b/modules/video_coding/decoding_state.cc
@@ -81,15 +81,15 @@
   for (const NaluInfo& nalu : frame->GetNaluInfos()) {
     if (nalu.type == H264::NaluType::kPps) {
       if (nalu.pps_id < 0) {
-        LOG(LS_WARNING) << "Received pps without pps id.";
+        RTC_LOG(LS_WARNING) << "Received pps without pps id.";
       } else if (nalu.sps_id < 0) {
-        LOG(LS_WARNING) << "Received pps without sps id.";
+        RTC_LOG(LS_WARNING) << "Received pps without sps id.";
       } else {
         received_pps_[nalu.pps_id] = nalu.sps_id;
       }
     } else if (nalu.type == H264::NaluType::kSps) {
       if (nalu.sps_id < 0) {
-        LOG(LS_WARNING) << "Received sps without sps id.";
+        RTC_LOG(LS_WARNING) << "Received sps without sps id.";
       } else {
         received_sps_.insert(nalu.sps_id);
       }
@@ -295,8 +295,8 @@
       frame->CodecSpecific()->codecType == kVideoCodecVP9 &&
       frame->CodecSpecific()->codecSpecific.VP9.flexible_mode;
   if (is_flexible_mode && frame->PictureId() == kNoPictureId) {
-    LOG(LS_WARNING) << "Frame is marked as using flexible mode but no"
-                    << "picture id is set.";
+    RTC_LOG(LS_WARNING) << "Frame is marked as using flexible mode but no"
+                        << "picture id is set.";
     return false;
   }
   return is_flexible_mode;
@@ -326,16 +326,16 @@
     switch (nalu.type) {
       case H264::NaluType::kPps:
         if (nalu.pps_id < 0) {
-          LOG(LS_WARNING) << "Received pps without pps id.";
+          RTC_LOG(LS_WARNING) << "Received pps without pps id.";
         } else if (nalu.sps_id < 0) {
-          LOG(LS_WARNING) << "Received pps without sps id.";
+          RTC_LOG(LS_WARNING) << "Received pps without sps id.";
         } else {
           new_pps[nalu.pps_id] = nalu.sps_id;
         }
         break;
       case H264::NaluType::kSps:
         if (nalu.sps_id < 0) {
-          LOG(LS_WARNING) << "Received sps without sps id.";
+          RTC_LOG(LS_WARNING) << "Received sps without sps id.";
         } else {
           new_sps.insert(nalu.sps_id);
         }