Change 9789001: attempt #3 after fixing the problems with linux Created by Wei Li: https://chromium…

chrome/browser/history/history_types.h

Index: chrome/browser/history/history_types.h
diff --git a/chrome/browser/history/history_types.h b/chrome/browser/history/history_types.h
index 823a8369f98156ca606baeb602c6a5b7fb5c643c..30ded6694559fe91dea155180284e4a881543ff9 100644
--- a/chrome/browser/history/history_types.h
+++ b/chrome/browser/history/history_types.h
@@ -237,6 +237,12 @@ class VisitRow {
   // change.
   bool is_indexed;
 
+  // Record how much time a user has this visit starting from the user
+  // opened this visit to the user closed or ended this visit.
+  // This includes both active and inactive time as long as
+  // the visit was present.
+  base::TimeDelta visit_duration;
+
   // Compares two visits based on dates, for sorting.
   bool operator<(const VisitRow& other) {
     return visit_time < other.visit_time;