Revert of Fix for URL opening code

content/public/test/repeated_notification_observer.cc

-// Copyright 2017 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 "content/public/test/repeated_notification_observer.h"
-
-#include "base/auto_reset.h"
-#include "base/macros.h"
-#include "content/public/browser/browser_thread.h"
-#include "content/public/browser/notification_service.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace content {
-
-RepeatedNotificationObserver::RepeatedNotificationObserver(int type, int count)
-    : num_outstanding_(count), running_(false) {
-  registrar_.Add(this, type, NotificationService::AllSources());
-}
-
-void RepeatedNotificationObserver::Observe(int type,
-                                           const NotificationSource& source,
-                                           const NotificationDetails& details) {
-  ASSERT_GT(num_outstanding_, 0);
-  if (!--num_outstanding_ && running_)
-    run_loop_.QuitWhenIdle();
-}
-
-void RepeatedNotificationObserver::Wait() {
-  if (num_outstanding_ <= 0)
-    return;
-
-  {
-    DCHECK(!running_);
-    base::AutoReset<bool> auto_reset(&running_, true);
-    run_loop_.Run();
-  }
-}
-
-}  // namespace content