Fix for URL opening code

content/public/test/repeated_notification_observer.cc

Index: content/public/test/repeated_notification_observer.cc
diff --git a/content/public/test/repeated_notification_observer.cc b/content/public/test/repeated_notification_observer.cc
new file mode 100644
index 0000000000000000000000000000000000000000..f9e6a99904806bb90d4b3fea9efdf9c5e6eb1361
--- /dev/null
+++ b/content/public/test/repeated_notification_observer.cc
@@ -0,0 +1,38 @@
+// Copyright (c) 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/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_) {
+    BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
+                            run_loop_.QuitClosure());
+  }
+}
+
+void RepeatedNotificationObserver::Wait() {
+  if (num_outstanding_ <= 0)
+    return;
+
+  running_ = true;
+  run_loop_.Run();
+  running_ = false;
+}
+
+}  // namespace content