Cookie Sync functionality (prebid#4457)

* changing PID param value for testing

* cookie sync integration

* merge from upstream

modules/nanointeractiveBidAdapter.js

@@ -14,6 +14,8 @@ export const SUB_ID = 'subId';
 export const REF = 'ref';
 export const LOCATION = 'loc';
 
+var nanoPid = '5a1ec660eb0a191dfa591172';
+
 export const spec = {
 
   code: BIDDER_CODE,
@@ -29,7 +31,7 @@ export const spec = {
     validBidRequests.forEach(
       bid => payload.push(createSingleBidRequest(bid, bidderRequest))
     );
-    const url = getEndpointUrl('main') + '/hb';
+    const url = getEndpointUrl() + '/hb';
 
     return {
       method: 'POST',
@@ -45,13 +47,33 @@ export const spec = {
       }
     });
     return bids;
+  },
+  getUserSyncs: function(syncOptions) {
+    const syncs = [];
+    if (syncOptions.iframeEnabled) {
+      syncs.push({
+        type: 'iframe',
+        url: getEndpointUrl() + '/hb/cookieSync/' + nanoPid
+      });
+    }
+
+    if (syncOptions.pixelEnabled) {
+      syncs.push({
+        type: 'image',
+        url: getEndpointUrl() + '/hb/cookieSync/' + nanoPid
+      });
+    }
+    return syncs;
   }
 
 };
 
 function createSingleBidRequest(bid, bidderRequest) {
   const location = utils.deepAccess(bidderRequest, 'refererInfo.referer');
   const origin = utils.getOrigin();
+
+  nanoPid = bid.params[SSP_PLACEMENT_ID] || nanoPid;
+
   const data = {
     [SSP_PLACEMENT_ID]: bid.params[SSP_PLACEMENT_ID],
     [NQ]: [createNqParam(bid)],
@@ -117,10 +139,9 @@ function isEngineResponseValid(response) {
 /**
  * Used mainly for debugging
  *
- * @param type
  * @returns string
  */
-function getEndpointUrl(type) {
+function getEndpointUrl() {
   const nanoConfig = config.getConfig('nano');
   return (nanoConfig && nanoConfig['endpointUrl']) || END_POINT_URL;
 }