Refactor ResourceRequestAllowedNotifier EULA checking into a separate class.

chrome/browser/metrics/variations/eula_accepted_notifier_chromeos.h

+// Copyright (c) 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.
+
+#ifndef CHROME_BROWSER_METRICS_VARIATIONS_EULA_ACCEPTED_NOTIFIER_CHROMEOS_H_
+#define CHROME_BROWSER_METRICS_VARIATIONS_EULA_ACCEPTED_NOTIFIER_CHROMEOS_H_
+
+#include "chrome/browser/metrics/variations/eula_accepted_notifier.h"
+#include "content/public/browser/notification_observer.h"
+#include "content/public/browser/notification_registrar.h"
+
+// ChromeOS implementation of the EulaAcceptedNotifier.
+class EulaAcceptedNotifierChromeos : public EulaAcceptedNotifier,
+                                     public content::NotificationObserver {
+ public:
+  EulaAcceptedNotifierChromeos();
+  virtual ~EulaAcceptedNotifierChromeos();
+
+  // EulaAcceptedNotifier overrides:
+  virtual bool IsEulaAccepted() OVERRIDE;
+
+ private:
+  // content::NotificationObserver overrides:
+  virtual void Observe(int type,
+                       const content::NotificationSource& source,
+                       const content::NotificationDetails& details) OVERRIDE;
+
+  // Used to listen for the EULA accepted notification.
+  content::NotificationRegistrar registrar_;
+
+  DISALLOW_COPY_AND_ASSIGN(EulaAcceptedNotifierChromeos);
+};
+
+#endif  // CHROME_BROWSER_METRICS_VARIATIONS_EULA_ACCEPTED_NOTIFIER_CHROMEOS_H_