Add probe logging to RtcEventLog.

webrtc/logging/rtc_event_log/rtc_event_log_unittest_helper.h

Index: webrtc/logging/rtc_event_log/rtc_event_log_unittest_helper.h
diff --git a/webrtc/logging/rtc_event_log/rtc_event_log_unittest_helper.h b/webrtc/logging/rtc_event_log/rtc_event_log_unittest_helper.h
index 2f4e17703b95d6834307476aa0acbea50d226707..5d6b71d44765d2ea0d0219da86c923727928836b 100644
--- a/webrtc/logging/rtc_event_log/rtc_event_log_unittest_helper.h
+++ b/webrtc/logging/rtc_event_log/rtc_event_log_unittest_helper.h
@@ -65,6 +65,23 @@ class RtcEventLogTestHelper {
                                   size_t index);
   static void VerifyLogEndEvent(const ParsedRtcEventLog& parsed_log,
                                 size_t index);
+
+  static void VerifyBweProbeCluster(const ParsedRtcEventLog& parsed_log,
+                                    size_t index,
+                                    uint32_t id,
+                                    uint32_t bitrate_bps,
+                                    uint32_t min_probes,
+                                    uint32_t min_bytes);
+
+  static void VerifyProbeResultSuccess(const ParsedRtcEventLog& parsed_log,
+                                       size_t index,
+                                       uint32_t id,
+                                       uint32_t bitrate_bps);
+
+  static void VerifyProbeResultFailure(const ParsedRtcEventLog& parsed_log,
+                                       size_t index,
+                                       uint32_t id,
+                                       ProbeFailureReason failure_reason);
 };
 
 }  // namespace webrtc