Settings Router Refactor: Migrate to settings.Route.navigateTo calls.

chrome/browser/resources/settings/printing_page/printing_page.js

Index: chrome/browser/resources/settings/printing_page/printing_page.js
diff --git a/chrome/browser/resources/settings/printing_page/printing_page.js b/chrome/browser/resources/settings/printing_page/printing_page.js
index ee4a8f571d68482524bb1004068fac08e07a576c..d6ba00a87a4bf6bde3255e896ed888bfb2dd197d 100644
--- a/chrome/browser/resources/settings/printing_page/printing_page.js
+++ b/chrome/browser/resources/settings/printing_page/printing_page.js
@@ -22,12 +22,12 @@ Polymer({
 <if expr="chromeos">
   /** @private */
   onTapCupsPrinters_: function() {
-    this.$.pages.setSubpageChain(['cups-printers']);
+    settings.navigateTo(settings.Route.CUPS_PRINTERS);
   },
 </if>
 
   /** @private */
   onTapCloudPrinters_: function() {
-    this.$.pages.setSubpageChain(['cloud-printers']);
+    settings.navigateTo(settings.Route.CLOUD_PRINTERS);
   },
 });