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/ortc/rtpparametersconversion.cc b/ortc/rtpparametersconversion.cc
index 0376abd..d45b577 100644
--- a/ortc/rtpparametersconversion.cc
+++ b/ortc/rtpparametersconversion.cc
@@ -237,8 +237,8 @@
       return rtc::Optional<RtcpFeedback>(
           {RtcpFeedbackType::CCM, RtcpFeedbackMessageType::FIR});
     } else {
-      LOG(LS_WARNING) << "Unsupported parameter for CCM RTCP feedback: "
-                      << cricket_feedback.param();
+      RTC_LOG(LS_WARNING) << "Unsupported parameter for CCM RTCP feedback: "
+                          << cricket_feedback.param();
       return rtc::Optional<RtcpFeedback>();
     }
   } else if (cricket_feedback.id() == cricket::kRtcpFbParamNack) {
@@ -249,21 +249,21 @@
       return rtc::Optional<RtcpFeedback>(
           {RtcpFeedbackType::NACK, RtcpFeedbackMessageType::PLI});
     } else {
-      LOG(LS_WARNING) << "Unsupported parameter for NACK RTCP feedback: "
-                      << cricket_feedback.param();
+      RTC_LOG(LS_WARNING) << "Unsupported parameter for NACK RTCP feedback: "
+                          << cricket_feedback.param();
       return rtc::Optional<RtcpFeedback>();
     }
   } else if (cricket_feedback.id() == cricket::kRtcpFbParamRemb) {
     if (!cricket_feedback.param().empty()) {
-      LOG(LS_WARNING) << "Unsupported parameter for REMB RTCP feedback: "
-                      << cricket_feedback.param();
+      RTC_LOG(LS_WARNING) << "Unsupported parameter for REMB RTCP feedback: "
+                          << cricket_feedback.param();
       return rtc::Optional<RtcpFeedback>();
     } else {
       return rtc::Optional<RtcpFeedback>(RtcpFeedback(RtcpFeedbackType::REMB));
     }
   } else if (cricket_feedback.id() == cricket::kRtcpFbParamTransportCc) {
     if (!cricket_feedback.param().empty()) {
-      LOG(LS_WARNING)
+      RTC_LOG(LS_WARNING)
           << "Unsupported parameter for transport-cc RTCP feedback: "
           << cricket_feedback.param();
       return rtc::Optional<RtcpFeedback>();
@@ -272,8 +272,8 @@
           RtcpFeedback(RtcpFeedbackType::TRANSPORT_CC));
     }
   }
-  LOG(LS_WARNING) << "Unsupported RTCP feedback type: "
-                  << cricket_feedback.id();
+  RTC_LOG(LS_WARNING) << "Unsupported RTCP feedback type: "
+                      << cricket_feedback.id();
   return rtc::Optional<RtcpFeedback>();
 }