Hangouts Remote Desktop Part VI - Show confirm dialog before retrieving access code

remoting/webapp/background/it2me_helpee_channel.js

Index: remoting/webapp/background/it2me_helpee_channel.js
diff --git a/remoting/webapp/background/it2me_helpee_channel.js b/remoting/webapp/background/it2me_helpee_channel.js
index 94001883bbbbed43d4b417d0d03214d8e3ef916d..6c9453b7c8b53ff1bdda2cd356275f3e7f102716 100644
--- a/remoting/webapp/background/it2me_helpee_channel.js
+++ b/remoting/webapp/background/it2me_helpee_channel.js
@@ -280,23 +280,39 @@ remoting.It2MeHelpeeChannel.prototype.handleConnect_ =
  * @private
  */
 remoting.It2MeHelpeeChannel.prototype.showConfirmDialog_ = function() {
-  /**
-   * @param {function(*=):void} resolve
-   * @param {function(*=):void} reject
-   */
-  return new Promise(function(resolve, reject) {
-    // TODO(kelvinp): The existing implementation doesn't work in the v2 app as
-    // window.confirm is blacklisted. Implement the dialog using
-    // chrome.app.window instead (crbug.com/405139).
-    if (base.isAppsV2()) {
-      resolve();
-    // The unlocalized string will be replaced in (crbug.com/405139).
-    } else if (window.confirm('Accept help?')) {
-      resolve();
-    } else {
-      reject(new Error(remoting.Error.CANCELLED));
-    }
-  });
+  var message = l10n.getTranslationOrError(
+      /*i18n-content*/'HANGOUTS_CONFIRM_DIALOG_MESSAGE');
+
+  if (base.isAppsV2()) {
+    /**
+     * @param {function(*=):void} resolve
+     * @param {function(*=):void} reject
+     */
+    return new Promise(function(resolve, reject) {
+      /** @param {number} result */
+      function confirmDialogCallback(result) {
+        if (result === 1) {
+          resolve();
+        } else {
+          reject(new Error(remoting.Error.CANCELLED));
+        }
+      }
+
+      remoting.MessageWindow.showConfirmWindow(
+          '', // Empty string to use the package name as the dialog title.
+          message,
+          l10n.getTranslationOrError(
+              /*i18n-content*/'HANGOUTS_CONFIRM_DIALOG_ACCEPT'),
+          l10n.getTranslationOrError(
+              /*i18n-content*/'HANGOUTS_CONFIRM_DIALOG_DECLINE'),
+          confirmDialogCallback
+      );
+    });
+  } else if (window.confirm(message)) {
+    return Promise.resolve();
+  } else {
+    return Promise.reject(new Error(remoting.Error.CANCELLED));
+  }
 };
 
 /**