Thread user gesture through page_load_metrics abort pipeline

chrome/browser/page_load_metrics/page_load_metrics_observer.h

Index: chrome/browser/page_load_metrics/page_load_metrics_observer.h
diff --git a/chrome/browser/page_load_metrics/page_load_metrics_observer.h b/chrome/browser/page_load_metrics/page_load_metrics_observer.h
index 52e282644676b2e1e5ffd47a0ebeddc3adac33b1..7a0d016b3e0cac04199d665524170487a9b26c63 100644
--- a/chrome/browser/page_load_metrics/page_load_metrics_observer.h
+++ b/chrome/browser/page_load_metrics/page_load_metrics_observer.h
@@ -65,9 +65,11 @@ struct PageLoadExtraInfo {
       const base::Optional<base::TimeDelta>& first_background_time,
       const base::Optional<base::TimeDelta>& first_foreground_time,
       bool started_in_foreground,
+      bool user_gesture,
       const GURL& committed_url,
       const base::Optional<base::TimeDelta>& time_to_commit,
       UserAbortType abort_type,
+      bool abort_user_initiated,
       const base::Optional<base::TimeDelta>& time_to_abort,
       const PageLoadMetadata& metadata);
 
@@ -84,6 +86,10 @@ struct PageLoadExtraInfo {
   // True if the page load started in the foreground.
   const bool started_in_foreground;
 
+  // True if this is either a browser initiated navigation or the user_gesture
+  // bit is true in the renderer.
+  const bool user_gesture;
+
   // Committed URL. If the page load did not commit, |committed_url| will be
   // empty.
   const GURL committed_url;
@@ -95,6 +101,10 @@ struct PageLoadExtraInfo {
   // aborted, |abort_type| will be |ABORT_NONE|.
   const UserAbortType abort_type;
 
+  // TODO(csharrison): If more metadata for aborts is needed we should provide a
+  // better abstraction. Note that this is an approximation.
+  bool abort_user_initiated;
+
   const base::Optional<base::TimeDelta> time_to_abort;
 
   // Extra information supplied to the page load metrics system from the