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-rw-r--r--chrome/browser/history/visit_database.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/chrome/browser/history/visit_database.h b/chrome/browser/history/visit_database.h
index 9f56bd5..988f0c7 100644
--- a/chrome/browser/history/visit_database.h
+++ b/chrome/browser/history/visit_database.h
@@ -188,6 +188,10 @@ class VisitDatabase {
// hasn't happened yet.
static bool FillVisitVector(sql::Statement& statement, VisitVector* visits);
+ // Called by the derived classes to migrate the older visits table which
+ // don't have visit_duration column yet.
+ bool MigrateVisitsWithoutDuration();
+
private:
DISALLOW_COPY_AND_ASSIGN(VisitDatabase);