Perform printer setup on Chrome OS before selecting printer.

chrome/browser/resources/print_preview/data/destination_store.js

Index: chrome/browser/resources/print_preview/data/destination_store.js
diff --git a/chrome/browser/resources/print_preview/data/destination_store.js b/chrome/browser/resources/print_preview/data/destination_store.js
index dafd6553b237f3a68c0e279e159bd63c44167ed7..696f953c11cd915c6b868eb75fb245e893985a4e 100644
--- a/chrome/browser/resources/print_preview/data/destination_store.js
+++ b/chrome/browser/resources/print_preview/data/destination_store.js
@@ -776,7 +776,8 @@ cr.define('print_preview', function() {
       this.autoSelectMatchingDestination_ =
           this.createExactDestinationMatch_(origin, id);
 
-      if (origin == print_preview.Destination.Origin.LOCAL) {
+      if (origin == print_preview.Destination.Origin.LOCAL ||
+          origin == print_preview.Destination.Origin.CROS) {
         this.nativeLayer_.startGetLocalDestinationCapabilities(id);
         return true;
       }
@@ -902,6 +903,7 @@ cr.define('print_preview', function() {
         origins.push(print_preview.Destination.Origin.LOCAL);
         origins.push(print_preview.Destination.Origin.PRIVET);
         origins.push(print_preview.Destination.Origin.EXTENSION);
+        origins.push(print_preview.Destination.Origin.CROS);
       }
       if (isCloud) {
         origins.push(print_preview.Destination.Origin.COOKIES);
@@ -1083,6 +1085,10 @@ cr.define('print_preview', function() {
       }
     },
 
+    resolveCrosDestination: function(destination) {
+      this.nativeLayer_.setupPrinter(destination.id);
+    },
+
     /**
      * Attempts to resolve a provisional destination.
      * @param {!print_preview.Destination} destinaion Provisional destination
@@ -1272,6 +1278,20 @@ cr.define('print_preview', function() {
     },
 
     /**
+     * Handle the result of a PRINTER_SETUP request.
+     * @param {!Event} evt event carrying the results.
+     * @private
+     */
+    handleCrosDestinationResolved_: function(evt) {
+      var event = new Event(
+          DestinationStore.EventType.PRINTER_CONFIGURED);

[xdai1, 2016/12/30 00:38:13]

Seems there is no DestinationStore.EventType.PRINTER_CONFIGURED type?

[skau, 2017/01/04 18:57:06]

Looks like it was left out of the CL somehow.  It's there now.

+      event.printerId = evt.printerId;
+      event.capabilities = evt.capabilities;
+      event.success = evt.success;
+      this.dispatchEvent(event);
+    },
+
+    /**
      * Inserts {@code destination} to the data store and dispatches a
      * DESTINATIONS_INSERTED event.
      * @param {!print_preview.Destination} destination Print destination to
@@ -1456,6 +1476,10 @@ cr.define('print_preview', function() {
           this.nativeLayer_,
           print_preview.NativeLayer.EventType.PROVISIONAL_DESTINATION_RESOLVED,
           this.handleProvisionalDestinationResolved_.bind(this));
+      this.tracker_.add(
+          this.nativeLayer_,
+          print_preview.NativeLayer.EventType.PRINTER_SETUP,
+          this.handleCrosDestinationResolved_.bind(this));
     },
 
     /**