Move flush to context

js/id/id.js

@@ -79,6 +79,13 @@ window.iD = function () {
     context.changes = history.changes;
     context.intersects = history.intersects;
 
+    context.flush = function() {
+        history.reset();
+        connection.flush();
+        map.redraw();
+        return context;
+    };
+
     /* Graph */
     context.hasEntity = function(id) {
         return history.graph().hasEntity(id);

js/id/renderer/map.js

@@ -404,12 +404,6 @@ iD.Map = function(context) {
         return newZoom;
     };
 
-    map.flush = function() {
-        context.connection().flush();
-        context.history().reset();
-        return map;
-    };
-
     map.editable = function() {
         return map.zoom() >= 16;
     };

js/id/ui/save.js

@@ -54,8 +54,7 @@ iD.ui.Save = function(context) {
                         .append('p')
                         .text(err.responseText);
                 } else {
-                    history.reset();
-                    map.flush().redraw();
+                    context.flush();
                     success(e, changeset_id);
                 }
             });

js/id/ui/source_switch.js

@@ -13,8 +13,7 @@ iD.ui.SourceSwitch = function(context) {
         context.connection()
             .switch(live ? keys[1] : keys[0]);
 
-        context.map()
-            .flush();
+        context.flush();
 
         d3.select(this)
             .text(live ? t('source_switch.dev') : t('source_switch.live'))