
The migration to project-based URLs has made evident the need for some alias in gr-navigation to `history.replaceState`. This change calls the function `upgradeUrl` within gr-diff-view and gr-change-view iff the project returned by getChangeDetail differs from the one set on app.params. Bug: Issue 6708 Change-Id: I7b542ddb989527b6a89ccdfd79846808835ed5a3