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/packet_buffer.cc b/modules/video_coding/packet_buffer.cc
index 0e4ef6a..bf83083 100644
--- a/modules/video_coding/packet_buffer.cc
+++ b/modules/video_coding/packet_buffer.cc
@@ -206,8 +206,8 @@
 
 bool PacketBuffer::ExpandBufferSize() {
   if (size_ == max_size_) {
-    LOG(LS_WARNING) << "PacketBuffer is already at max size (" << max_size_
-                    << "), failed to increase size. Clearing PacketBuffer.";
+    RTC_LOG(LS_WARNING) << "PacketBuffer is already at max size (" << max_size_
+                        << "), failed to increase size. Clearing PacketBuffer.";
     Clear();
     return false;
   }
@@ -225,7 +225,7 @@
   size_ = new_size;
   sequence_buffer_ = std::move(new_sequence_buffer);
   data_buffer_ = std::move(new_data_buffer);
-  LOG(LS_INFO) << "PacketBuffer size expanded to " << new_size;
+  RTC_LOG(LS_INFO) << "PacketBuffer size expanded to " << new_size;
   return true;
 }
 
@@ -344,7 +344,7 @@
             ss << "Treating as key frame since "
                   "WebRTC-SpsPpsIdrIsH264Keyframe is disabled.";
           }
-          LOG(LS_WARNING) << ss.str();
+          RTC_LOG(LS_WARNING) << ss.str();
         }
 
         // Now that we have decided whether to treat this frame as a key frame
@@ -419,9 +419,9 @@
     RTC_DCHECK_EQ(data_buffer_[index].seqNum, sequence_buffer_[index].seq_num);
     size_t length = data_buffer_[index].sizeBytes;
     if (destination + length > destination_end) {
-      LOG(LS_WARNING) << "Frame (" << frame.picture_id << ":"
-                      << static_cast<int>(frame.spatial_layer) << ")"
-                      << " bitstream buffer is not large enough.";
+      RTC_LOG(LS_WARNING) << "Frame (" << frame.picture_id << ":"
+                          << static_cast<int>(frame.spatial_layer) << ")"
+                          << " bitstream buffer is not large enough.";
       return false;
     }