Implement online reauth UI for Locked Profiles on Mac

chrome/browser/ui/user_manager.cc

Index: chrome/browser/ui/user_manager.cc
diff --git a/chrome/browser/ui/user_manager.cc b/chrome/browser/ui/user_manager.cc
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+++ b/chrome/browser/ui/user_manager.cc
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+// 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.
+
+#include "chrome/browser/ui/user_manager.h"
+
+#include "chrome/browser/signin/signin_promo.h"
+#include "components/guest_view/browser/guest_view_manager.h"
+#include "google_apis/gaia/gaia_urls.h"
+
+namespace {
+
+bool AddToSet(std::set<content::WebContents*>* content_set,
+              content::WebContents* web_contents) {
+  content_set->insert(web_contents);
+  return false;
+}
+
+}  // namespace
+
+UserManager::ReauthDialogObserver::ReauthDialogObserver(
+    content::WebContents* web_contents, const std::string& email_address)
+    : email_address_(email_address) {
+  // Observe navigations of the web contents so that the dialog can close itself
+  // when the sign in process is done.
+  Observe(web_contents);
+}
+
+void UserManager::ReauthDialogObserver::DidStopLoading() {
+  // If the sign in process reaches the termination URL, close the dialog.
+  // Make sure to remove any parts of the URL that gaia might append during
+  // signin.
+  GURL url = web_contents()->GetURL();
+  url::Replacements<char> replacements;
+  replacements.ClearQuery();
+  replacements.ClearRef();
+  if (url.ReplaceComponents(replacements) ==
+        GaiaUrls::GetInstance()->signin_completed_continue_url()) {
+    CloseReauthDialog();
+    return;
+  }
+
+  // If still observing the top level web contents, try to find the embedded
+  // webview and observe it instead.  The webview may not be found in the
+  // initial page load since it loads asynchronously.
+  if (url.GetOrigin() !=
+        signin::GetReauthURLWithEmail(email_address_).GetOrigin()) {
+    return;
+  }
+
+  std::set<content::WebContents*> content_set;
+  guest_view::GuestViewManager* manager =
+      guest_view::GuestViewManager::FromBrowserContext(
+          web_contents()->GetBrowserContext());
+  if (manager)
+    manager->ForEachGuest(web_contents(), base::Bind(&AddToSet, &content_set));
+  DCHECK_LE(content_set.size(), 1U);
+  if (!content_set.empty())
+    Observe(*content_set.begin());
+}