Identity API: Add component app for auth flow UI

chrome/browser/resources/identity_scope_approval_dialog/background.js

+// Copyright 2013 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.
+
+function showAuthDialog(key, url, mode) {

[James Hawkins, 2013/05/21 18:05:14]

nit: Document method and params.

[Michael Courage, 2013/05/21 19:10:21]

Done.

+  var options = {
+    frame: 'none',
+    id: key,
+    minWidth: 1024,
+    minHeight: 768,
+    hidden: true
+  };
+  chrome.app.window.create('scope_approval_dialog.html', options,
+                           initializeWebFlow);
+
+  function initializeWebFlow(win) {

[James Hawkins, 2013/05/21 18:05:14]

Optional nit: Either inline this function into the invocation parameter or pull
it out into its own method (not sub-method).

[Michael Courage, 2013/05/21 19:10:21]

Done.

+    win.contentWindow.addEventListener('load', function(event) {
+      var windowParam;
+      if (mode == 'interactive')
+        windowParam = win;
+      win.contentWindow.loadAuthUrlAndShowWindow(url, windowParam);
+    });
+  }
+}
+
+chrome.identityPrivate.onWebFlowRequest.addListener(showAuthDialog);
+