Print Preview: Remove global onPrivetPrintFailed

chrome/browser/resources/print_preview/component.js

Index: chrome/browser/resources/print_preview/component.js
diff --git a/chrome/browser/resources/print_preview/component.js b/chrome/browser/resources/print_preview/component.js
index 5431b74e5cae69c4053a2d5f8632b73f85ad6c2c..74f91164f3b881fc9ef7b557c3def432725aff96 100644
--- a/chrome/browser/resources/print_preview/component.js
+++ b/chrome/browser/resources/print_preview/component.js
@@ -15,8 +15,7 @@ cr.define('print_preview', function() {
 
     /**
      * Component's HTML element.
-     * @type {Element}
-     * @private
+     * @private {Element}
      */
     this.element_ = null;
 
@@ -24,15 +23,19 @@ cr.define('print_preview', function() {
 
     /**
      * Component's event tracker.
-     * @type {EventTracker}
-     * @private
+     * @private {EventTracker}

[dpapad, 2017/06/15 00:19:18]

Since you are cleaning this up, let's also add the "!".

[rbpotter, 2017/06/15 01:03:01]

Done.

      */
      this.tracker_ = new EventTracker();
 
+    /**
+     * Component's WebUI listener tracker.
+     * @private {WebUIListenerTracker}

[dpapad, 2017/06/15 00:19:18]

Same here.

[rbpotter, 2017/06/15 01:03:01]

Done.

+     */
+     this.listenerTracker_ = new WebUIListenerTracker();
+
     /**
      * Child components of the component.
-     * @type {!Array<!print_preview.Component>}
-     * @private
+     * @private {!Array<!print_preview.Component>}
      */
     this.children_ = [];
   }
@@ -50,6 +53,11 @@ cr.define('print_preview', function() {
       return this.tracker_;
     },
 
+    /** @return {WebUIListenerTracker} Component's Web UI listener tracker. */

[dpapad, 2017/06/15 00:19:18]

Same here, let's add the "!".

[rbpotter, 2017/06/15 01:03:01]

Done.

+    get listenerTracker() {
+      return this.listenerTracker_;
+    },
+
     /**
      * @return {boolean} Whether the element of the component is already in the
      *     HTML document.
@@ -88,6 +96,7 @@ cr.define('print_preview', function() {
         }
       });
       this.tracker_.removeAll();
+      this.listenerTracker_.removeAll();
       this.isInDocument_ = false;
     },