Remove NOTIFICATION_HISTORY_URLS_MODIFIED

components/history/core/browser/history_backend_observer.h

Index: components/history/core/browser/history_backend_observer.h
diff --git a/components/history/core/browser/history_backend_observer.h b/components/history/core/browser/history_backend_observer.h
index e9fff7e57a4679962c11678844f4e4b8e43870a4..0d537b2758ba9a76dc7cfa65c45696bff47a04bb 100644
--- a/components/history/core/browser/history_backend_observer.h
+++ b/components/history/core/browser/history_backend_observer.h
@@ -30,6 +30,14 @@ class HistoryBackendObserver {
                             const RedirectList& redirects,
                             base::Time visit_time) = 0;
 
+  // Called when a URL has been added or modified.
+  //
+  // |changed_urls| lists the information for each of the URLs affected. The
+  // rows will have the IDs that are currently in effect in the main history
+  // database.
+  virtual void OnURLsModified(history::HistoryBackend* history_backend,
+                              const history::URLRows& changed_urls) = 0;
+
  private:
   DISALLOW_COPY_AND_ASSIGN(HistoryBackendObserver);
 };