Print Preview: Fix compile errors in settings/ directory

chrome/browser/resources/print_preview/settings/scaling_settings.js

Index: chrome/browser/resources/print_preview/settings/scaling_settings.js
diff --git a/chrome/browser/resources/print_preview/settings/scaling_settings.js b/chrome/browser/resources/print_preview/settings/scaling_settings.js
index 3857127b1e19832ee6803a57a980772c3946abaf..7ad100d84bede47dd9ee8acffa190a6c27ea6369 100644
--- a/chrome/browser/resources/print_preview/settings/scaling_settings.js
+++ b/chrome/browser/resources/print_preview/settings/scaling_settings.js
@@ -7,9 +7,9 @@ cr.define('print_preview', function() {
 
   /**
    * Component that renders the scaling settings UI.
-   * @param {!print_preview.ticket_items.scalingTicketItem} scalingTicketItem
+   * @param {!print_preview.ticket_items.Scaling} scalingTicketItem
    *     Used to read and write the scaling value.
-   * @param {!print_preview.ticket_items.fitToPageticketItem}
+   * @param {!print_preview.ticket_items.FitToPage}
    *     fitToPageTicketItem Used to read the fit to page value.
    * @constructor
    * @extends {print_preview.SettingsSection}
@@ -53,7 +53,7 @@ cr.define('print_preview', function() {
      */
     this.inputField_ = null;
 
-  };
+  }
 
   /**
    * Delay in milliseconds before processing the textfield.
@@ -87,16 +87,17 @@ cr.define('print_preview', function() {
     enterDocument: function() {
       this.inputField_ = this.getChildElement('input.user-value');
       print_preview.SettingsSection.prototype.enterDocument.call(this);
+      var inputField = assert(this.inputField_);
       this.tracker.add(
-          this.inputField_,
+          inputField,
           'keydown',
           this.onTextfieldKeyDown_.bind(this));
       this.tracker.add(
-          this.inputField_,
+          inputField,
           'input',
           this.onTextfieldInput_.bind(this));
       this.tracker.add(
-          this.inputField_,
+          inputField,
           'blur',
           this.onTextfieldBlur_.bind(this));
       this.tracker.add(
@@ -115,7 +116,7 @@ cr.define('print_preview', function() {
      */
     isFitToPageSelected: function() {
       return this.fitToPageTicketItem_.isCapabilityAvailable() &&
-             this.fitToPageTicketItem_.getValue();
+             !!this.fitToPageTicketItem_.getValue();
     },
 
     /**