Now mark delete notifications for archived URLs specially

chrome/browser/history/history_notifications.h

Index: chrome/browser/history/history_notifications.h
diff --git a/chrome/browser/history/history_notifications.h b/chrome/browser/history/history_notifications.h
index 25e0b4f5ea556153ac597390d5923aefd2e27abb..9c3f4110fadbcf2d8722fe338570e0cc62f27d45 100644
--- a/chrome/browser/history/history_notifications.h
+++ b/chrome/browser/history/history_notifications.h
@@ -57,6 +57,10 @@ struct URLsDeletedDetails : public HistoryDetails {
   // Set when all history was deleted. False means just a subset was deleted.
   bool all_history;
 
+  // True if the data was archived. False if the data was deleted in response to
+  // an explicit user action through the History UI.
+  bool archived;
+
   // The URLRows of URLs deleted. This is valid only when all_history is false
   // indicating that a subset of history has been deleted.
   URLRows rows;