Improve tracking of user initiated page loads.

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 fd8c8ffb16affce1d782c637335698ae6a6430fd..b3db22ac3294fb47b7e00aa380f1ee4178c4e94c 100644
--- a/chrome/browser/page_load_metrics/page_load_metrics_observer.h
+++ b/chrome/browser/page_load_metrics/page_load_metrics_observer.h
@@ -70,11 +70,10 @@ 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,
+      bool user_initiated,
       const GURL& committed_url,
       const GURL& start_url,
       UserAbortType abort_type,
-      bool abort_user_initiated,
       const base::Optional<base::TimeDelta>& time_to_abort,
       int num_cache_requests,
       int num_network_requests,
@@ -95,7 +94,7 @@ struct PageLoadExtraInfo {
 
   // True if this is either a browser initiated navigation or the user_gesture
   // bit is true in the renderer.
-  const bool user_gesture;
+  const bool user_initiated;
 
   // Committed URL. If the page load did not commit, |committed_url| will be
   // empty.
@@ -108,10 +107,6 @@ 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;
 
   // Note: these are only approximations, based on WebContents attribution from