[gnome-maps] routingDelegator: Add function to reset

[Marcus Lundblad <mlundblad src gnome org>]

commit 9f9c94b379f1b64482253905a84bd9e4f9659e41
Author: Marcus Lundblad <ml update uu se>
Date:   Tue Jun 20 21:58:33 2017 +0200

    routingDelegator: Add function to reset
    
    This function will reset the turn-by-turn route object or
    the transit plan for transit mode. This will be used by
    the map bubble to reset when requesting a route to the current
    object.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=784013

 src/routingDelegator.js |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/src/routingDelegator.js b/src/routingDelegator.js
index d3896de..7029e46 100644
--- a/src/routingDelegator.js
+++ b/src/routingDelegator.js
@@ -64,6 +64,13 @@
         this._transitRouting = useTransit;
     },
 
+    reset: function() {
+        if (this._transitRouting)
+            this._openTripPlanner.plan.reset();
+        else
+            this._graphHopper.route.reset();
+    },
+
     _onQueryChanged: function() {
         if (this._query.isValid()) {
             if (this._transitRouting) {