Introduce the Blink NotificationService, move permission checks there

content/browser/notifications/blink_notification_service_impl.h

+// Copyright 2016 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_BROWSER_NOTIFICATIONS_BLINK_NOTIFICATION_SERVICE_IMPL_H_
+#define CONTENT_BROWSER_NOTIFICATIONS_BLINK_NOTIFICATION_SERVICE_IMPL_H_
+
+#include "base/macros.h"
+#include "mojo/public/cpp/bindings/binding.h"
+#include "mojo/public/cpp/bindings/interface_request.h"
+#include "third_party/WebKit/public/platform/modules/notifications/notification_service.mojom.h"
+
+namespace content {
+
+class PlatformNotificationContextImpl;
+class ResourceContext;
+
+// Implementation of the NotificationService used for Web Notifications. Is
+// responsible for displaying, updating and reading of both non-persistent
+// and persistent notifications. Lives on the IO thread.
+class BlinkNotificationServiceImpl : public blink::mojom::NotificationService {
+ public:
+  BlinkNotificationServiceImpl(
+      PlatformNotificationContextImpl* notification_context,
+      ResourceContext* resource_context,
+      int render_process_id,
+      mojo::InterfaceRequest<blink::mojom::NotificationService> request);
+  ~BlinkNotificationServiceImpl() override;
+
+  // blink::mojom::NotificationService implementation.
+  void GetPermissionStatus(
+      const mojo::String& origin,
+      const GetPermissionStatusCallback& callback) override;
+
+ private:
+  // Called when an error is detected on binding_.
+  void OnConnectionError();
+
+  // The notification context that owns this service instance.
+  PlatformNotificationContextImpl* notification_context_;
+
+  ResourceContext* resource_context_;
+
+  int render_process_id_;
+
+  mojo::Binding<blink::mojom::NotificationService> binding_;
+
+  DISALLOW_COPY_AND_ASSIGN(BlinkNotificationServiceImpl);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_NOTIFICATIONS_BLINK_NOTIFICATION_SERVICE_IMPL_H_