Fix for URL opening code

content/public/test/repeated_notification_observer.h

+// 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.
+
+#ifndef CONTENT_PUBLIC_TEST_REPEATED_NOTIFICATION_OBSERVER_H_
+#define CONTENT_PUBLIC_TEST_REPEATED_NOTIFICATION_OBSERVER_H_
+
+#include "base/run_loop.h"
+#include "content/public/browser/notification_observer.h"
+#include "content/public/browser/notification_registrar.h"
+
+namespace content {
+
+// RepeatedNotificationObserver allows code to wait until specified number
+// of notifications of particular type are posted.
+class RepeatedNotificationObserver : public NotificationObserver {
+ public:
+  RepeatedNotificationObserver(int type, int count);
+
+  // NotificationObserver:
+  void Observe(int type,
+               const NotificationSource& source,
+               const NotificationDetails& details) override;
+
+  // Wait until |count| events of |type| (both specified in constructor) happen.
+  void Wait();
+
+ private:
+  int num_outstanding_;
+  NotificationRegistrar registrar_;
+  bool running_;
+  base::RunLoop run_loop_;
+
+  DISALLOW_COPY_AND_ASSIGN(RepeatedNotificationObserver);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_TEST_REPEATED_NOTIFICATION_OBSERVER_H_