Revert of Refactored incoming bitrate estimator.

webrtc/tools/event_log_visualizer/analyzer.cc

Index: webrtc/tools/event_log_visualizer/analyzer.cc
diff --git a/webrtc/tools/event_log_visualizer/analyzer.cc b/webrtc/tools/event_log_visualizer/analyzer.cc
index e1a912f5dfd6c70d8280713db2ff09936b8c7b90..f068759ec2a276f5b0bfff1302e2d1f0cab79273 100644
--- a/webrtc/tools/event_log_visualizer/analyzer.cc
+++ b/webrtc/tools/event_log_visualizer/analyzer.cc
@@ -41,6 +41,18 @@
 namespace plotting {
 
 namespace {
+
+class PacketFeedbackComparator {
+ public:
+  inline bool operator()(const webrtc::PacketFeedback& lhs,
+                         const webrtc::PacketFeedback& rhs) {
+    if (lhs.arrival_time_ms != rhs.arrival_time_ms)
+      return lhs.arrival_time_ms < rhs.arrival_time_ms;
+    if (lhs.send_time_ms != rhs.send_time_ms)
+      return lhs.send_time_ms < rhs.send_time_ms;
+    return lhs.sequence_number < rhs.sequence_number;
+  }
+};
 
 void SortPacketFeedbackVector(std::vector<PacketFeedback>* vec) {
   auto pred = [](const PacketFeedback& packet_feedback) {