Plot NetEq stats in RTC event log visualizer.

Bug: webrtc:9147
Change-Id: I61ec7bc5299201e25e1efc503b73b84d5be3ebbf
Reviewed-on: https://webrtc-review.googlesource.com/71740
Commit-Queue: Minyue Li <minyue@webrtc.org>
Reviewed-by: Björn Terelius <terelius@webrtc.org>
Reviewed-by: Henrik Lundin <henrik.lundin@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23151}
diff --git a/rtc_tools/event_log_visualizer/analyzer.h b/rtc_tools/event_log_visualizer/analyzer.h
index 572884c..51ae015 100644
--- a/rtc_tools/event_log_visualizer/analyzer.h
+++ b/rtc_tools/event_log_visualizer/analyzer.h
@@ -79,6 +79,11 @@
   void CreateAudioJitterBufferGraph(
       const NetEqStatsGetterMap& neteq_stats_getters,
       Plot* plot) const;
+  void CreateNetEqStatsGraph(
+      const NetEqStatsGetterMap& neteq_stats_getters,
+      rtc::FunctionView<float(const NetEqNetworkStatistics&)> stats_extractor,
+      const std::string& plot_name,
+      Plot* plot) const;
 
   void CreateIceCandidatePairConfigGraph(Plot* plot);
   void CreateIceConnectivityCheckGraph(Plot* plot);