Skip over the URL input when the NTP is used for the Home Button.

chrome/browser/resources/settings/controls/settings_input.js

Index: chrome/browser/resources/settings/controls/settings_input.js
diff --git a/chrome/browser/resources/settings/controls/settings_input.js b/chrome/browser/resources/settings/controls/settings_input.js
index 1de44bb64905b190f50013989a9639db9a1412bb..012a8bcaeccb646c238874c19da2cf913ad8e84c 100644
--- a/chrome/browser/resources/settings/controls/settings_input.js
+++ b/chrome/browser/resources/settings/controls/settings_input.js
@@ -36,6 +36,8 @@ Polymer({
       reflectToAttribute: true
     },
 
+    canTab: Boolean,
+
     /* Properties for paper-input. This is not strictly necessary.
      * Though it does define the types for the closure compiler. */
     errorMessage: { type: String },
@@ -78,6 +80,16 @@ Polymer({
   },
 
   /**
+   * Gets a tab index for this control if it can be tabbed to.
+   * @param {boolean} canTab
+   * @return {number}
+   * @private
+   */
+  getTabindex_: function(canTab) {
+    return canTab ? 0 : -1;
+  },
+
+  /**
    * Blur method for paper-input. Only update the pref value on a blur event.
    * @private
    */