Refactoring Reload in NavigationManager and CRWWebController.

ios/web/public/navigation_manager.h

Index: ios/web/public/navigation_manager.h
diff --git a/ios/web/public/navigation_manager.h b/ios/web/public/navigation_manager.h
index a8b1cf57f714c357f129a7150cb382e35838b50b..2fd5e061d0cd3ae768c87751f7fa871d74dd730d 100644
--- a/ios/web/public/navigation_manager.h
+++ b/ios/web/public/navigation_manager.h
@@ -153,9 +153,9 @@ class NavigationManager {
 
   // Reloads the visible item under the specified ReloadType. If
   // |check_for_repost| is true and the current item has POST data the user is
-  // prompted to see if they really want to reload the page. In nearly all cases
-  // pass in true.  If a transient item is showing, initiates a new navigation
-  // to its URL.
+  // prompted to see if they really want to reload the page. Pass in true if the
+  // reload is explicitly initiated by the user. If a transient item is showing,
+  // initiates a new navigation to its URL.
   // TODO(crbug.com/700571): implement the logic for when |reload_type| is
   // ORIGINAL_REQUEST_URL.
   // TODO(crbug.com/700958): implement the logic for |check_for_repost|.