md-settings: add reset request origin to reset feedback proto.

chrome/browser/resources/settings/reset_page/reset_profile_dialog.js

 // Copyright 2015 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.
 
 /**
  * @fileoverview
  *
  * 'settings-reset-profile-dialog' is the dialog shown for clearing profile
  * settings. A triggered variant of this dialog can be shown under certain
  * circumstances. See triggered_profile_resetter.h for when the triggered
@@ skipping 14 matching lines @@
       value: false,
     },
 
     /** @private */
     triggeredResetToolName_: {
       type: String,
       value: '',
     },
 
     /** @private */
+    resetRequestOrigin_: {

[hcarmona, 2016/10/13 20:30:19]

Please change to:

resetRequestOrigin: String,

Having a default when it's not used can slow down the page if many are added.
This is because data binding will happen twice (on set default and on set with
actual value)

[alito, 2016/10/13 21:27:28]

Done.

+      type: String,
+      value: '',
+    },
+
+    /** @private */
     clearingInProgress_: {
       type: Boolean,
       value: false,
     },
   },
 
   /** @private {!settings.ResetBrowserProxy} */
   browserProxy_: null,
 
   /**
@@ skipping 34 matching lines @@
     this.$.dialog.showModal();
     this.browserProxy_.onShowResetProfileDialog();
   },
 
   /** @override */
   attached: function() {
     this.isTriggered_ =
         settings.getCurrentRoute() == settings.Route.TRIGGERED_RESET_DIALOG;
     if (this.isTriggered_) {
       this.browserProxy_.getTriggeredResetToolName().then(function(name) {
+        this.resetRequestOrigin_ = 'triggeredreset';
         this.triggeredResetToolName_ = name;
         this.showDialog_();
       }.bind(this));
     } else {
+      var origin = window.location.hash.slice(1).toLowerCase() == 'cct' ?

[hcarmona, 2016/10/13 20:30:19]

Please add a comment explaining why 'cct' is important.

[alito, 2016/10/13 21:27:28]

Done.

+          'cct' : settings.getQueryParameters().get('origin');
+      this.resetRequestOrigin_ = origin || '';
       this.showDialog_();
     }
   },
 
   /** @private */
   onCancelTap_: function() {
     this.$.dialog.cancel();
   },
 
   /** @private */
   onResetTap_: function() {
     this.clearingInProgress_ = true;
     this.browserProxy_.performResetProfileSettings(
-        this.$.sendSettings.checked).then(function() {
+        this.$.sendSettings.checked, this.resetRequestOrigin_).then(function() {
       this.clearingInProgress_ = false;
       if (this.$.dialog.open)
         this.$.dialog.close();
       this.fire('reset-done');
     }.bind(this));
   },
 
   /**
    * Displays the settings that will be reported in a new tab.
    * @private
    */
   onShowReportedSettingsTap_: function() {
     this.browserProxy_.showReportedSettings();
   },
 });