Visualize events related to probing in the total bitrate graph.

BUG=webrtc:6984
R=terelius@webrtc.org

Review-Url: https://codereview.webrtc.org/2782553005 .
Cr-Commit-Position: refs/heads/master@{#17449}
diff --git a/webrtc/tools/event_log_visualizer/analyzer.h b/webrtc/tools/event_log_visualizer/analyzer.h
index 9773f2f..1acf756 100644
--- a/webrtc/tools/event_log_visualizer/analyzer.h
+++ b/webrtc/tools/event_log_visualizer/analyzer.h
@@ -167,6 +167,11 @@
 
   std::vector<AudioNetworkAdaptationEvent> audio_network_adaptation_events_;
 
+  std::vector<ParsedRtcEventLog::BweProbeClusterCreatedEvent>
+      bwe_probe_cluster_created_events_;
+
+  std::vector<ParsedRtcEventLog::BweProbeResultEvent> bwe_probe_result_events_;
+
   // Window and step size used for calculating moving averages, e.g. bitrate.
   // The generated data points will be |step_| microseconds apart.
   // Only events occuring at most |window_duration_| microseconds before the