[Md Feedback] Add initial data population for dialog.

chrome/browser/resources/md_feedback/feedback_container.js

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This Polymer element is used as a container for all the feedback
 // elements. Based on a number of factors, it determines which elements
 // to show and what will be submitted to the feedback servers.
 Polymer({
   is: 'feedback-container',
 
+  behaviors: [
+    I18nBehavior,
+  ],
+
+  properties: {
+    /**
+     * The user's email, if available.
+     * @type {string|undefined}
+     */
+    email: {
+      type: String,
+    },
+
+    /**
+     * The URL of the page the user was on before sending feedback.
+     * @type {string|undefined}
+     */
+    url: {
+      type: String,
+    },
+  },
+
   /**
    * Retrieves the feedback privacy note text, if it exists. On non-officially
    * branded builds, the string is not defined.
    *
    * @return {string} Privacy note text.
    */
   getPrivacyNote_: function() {
     return loadTimeData.valueExists('privacyNote') ?
         this.i18n('privacyNote') : '';

[afakhry, 2016/08/11 23:31:31]

I found a way to fix this <strong></strong> not being processed.

in the HTML file:

<div><p id="privacyNote"></p></div>

and here in the JS file:

ready: function() {
 this.$.privacyNote.innerHTML =
     loadTimeData.valueExists('privacyNote') ?
         loadTimeData.getString('privacyNote') : '';
}

You can now safely remove getPrivacyNote_() and behaviors: [I18nBehavior], as
well as the include <link rel="import"
href="chrome://resources/html/i18n_behavior.html">

Please build the official chrome-branded version of Chrome to verify that you
see the right string.

[apacible, 2016/09/10 07:47:00]

Done.

   },
 });