Show notification during ARC managed provision

chrome/browser/chromeos/arc/notification/arc_provision_notification_service.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 CHROME_BROWSER_CHROMEOS_ARC_NOTIFICATION_ARC_PROVISION_NOTIFICATION_SERVICE_H_
+#define CHROME_BROWSER_CHROMEOS_ARC_NOTIFICATION_ARC_PROVISION_NOTIFICATION_SERVICE_H_
+
+#include <memory>
+
+#include "base/macros.h"
+#include "chrome/browser/chromeos/arc/arc_session_manager.h"
+#include "components/arc/arc_service.h"
+
+namespace arc {
+
+// Watches for ARC provisioning status and displays a notification during
+// provision when ARC OptIn happens silently due to enterprise policies.
+class ArcProvisionNotificationService : public ArcService,
+                                        public ArcSessionManager::Observer {
+ public:
+  // The delegate whose methods are used by the service for showing/hiding the
+  // notifications. The delegate exists primarily for unit testing purposes.
+  class Delegate {
+   public:
+    virtual ~Delegate() {}

[Luis Héctor Chávez, 2017/03/13 15:50:41]

nit: define in the .cc with = default.

[emaxx, 2017/03/16 18:32:12]

Done.

+    virtual void ShowManagedProvisionNotification() = 0;
+    virtual void RemoveManagedProvisionNotification() = 0;
+  };

[Luis Héctor Chávez, 2017/03/13 15:50:41]

nit: DISALLOW_COPY_AND_ASSIGN(Delegate);

[emaxx, 2017/03/16 18:32:12]

Done.
But could you please explain what's the reason for having it here? This base
class is empty and therefore I don't see why copying it could be dangerous.

[Luis Héctor Chávez, 2017/03/16 19:28:14]

Just for consistency with the rest of the code.

+
+  explicit ArcProvisionNotificationService(ArcBridgeService* bridge_service);
+  ArcProvisionNotificationService(ArcBridgeService* bridge_service,
+                                  std::unique_ptr<Delegate> delegate);
+  ~ArcProvisionNotificationService() override;
+
+ protected:
+  // ArcSessionManager::Observer:
+  void OnArcPlayStoreEnabledChanged(bool enabled) override;
+  void OnArcStartOptInAndroidManagementCheck() override;
+  void OnArcInitialStart() override;
+  void OnArcSessionStopped(ArcStopReason stop_reason) override;
+  void OnArcSupportHostErrorShown(ArcSupportHost::Error error) override;
+
+ private:
+  std::unique_ptr<Delegate> delegate_;
+
+  DISALLOW_COPY_AND_ASSIGN(ArcProvisionNotificationService);
+};
+
+}  // namespace arc
+
+#endif  // CHROME_BROWSER_CHROMEOS_ARC_NOTIFICATION_ARC_PROVISION_NOTIFICATION_SERVICE_H_