Improve tracking of user initiated page loads.

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 06beda69a78a05cc10b8b946f221efe066c9d09d..10c24deeb602fe7f475b8fd9c6536416302269a1 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
@@ -71,7 +71,12 @@ const char kHistogramAbortReloadUserInitiated[] =
 namespace {
 
 bool IsAbortUserInitiated(const page_load_metrics::PageLoadExtraInfo& info) {
-  return info.abort_user_initiated && info.user_gesture;
+  // We consider an abort to be user initiated if the abort was triggered by a
+  // user action, and the page load being aborted was also user initiated. A
+  // user may abort a non-user-initiated page load, but we exclude these from
+  // our user initiated abort tracking since it's less clear that such an abort
+  // is interesting from a user perspective.
+  return info.abort_user_initiated && info.user_initiated;
 }
 
 void RecordAbortBeforeCommit(UserAbortType abort_type,