Allow TimeTicks for serialized page load operations to be equal.

chrome/browser/page_load_metrics/observers/aborts_page_load_metrics_observer.cc

Index: chrome/browser/page_load_metrics/observers/aborts_page_load_metrics_observer.cc
diff --git a/chrome/browser/page_load_metrics/observers/aborts_page_load_metrics_observer.cc b/chrome/browser/page_load_metrics/observers/aborts_page_load_metrics_observer.cc
index 4c101f6009c02663d45ae3a1f911a2ca88a14461..8d0b11c47db55c5e616a47c08e7fbdf161a3ba3c 100644
--- a/chrome/browser/page_load_metrics/observers/aborts_page_load_metrics_observer.cc
+++ b/chrome/browser/page_load_metrics/observers/aborts_page_load_metrics_observer.cc
@@ -129,13 +129,14 @@ void AbortsPageLoadMetricsObserver::OnComplete(
     return;
 
   base::TimeDelta time_to_abort = extra_info.time_to_abort;
-  DCHECK(!time_to_abort.is_zero());
 
   // Don't log abort times if the page was backgrounded before the abort event.
-  if (!WasStartedInForegroundEventInForeground(time_to_abort, extra_info))
+  // time_to_abort might be zero but it is known this is valid otherwise
+  // abort_type would be ABORT_NONE, so pass true for event_was_committed.
+  if (!WasStartedInForegroundEventInForeground(time_to_abort, true, extra_info))
     return;
 
-  if (extra_info.time_to_commit.is_zero()) {
+  if (!extra_info.committed) {
     RecordAbortBeforeCommit(abort_type, time_to_abort);
     return;
   }