[Chromecast] Add method to CastCdm for the session expiration updating.

components/gcm_driver/instance_id/instance_id_impl_factory.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 COMPONENTS_GCM_DRIVER_INSTANCE_ID_INSTANCE_ID_IMPL_FACTORY_H_
+#define COMPONENTS_GCM_DRIVER_INSTANCE_ID_INSTANCE_ID_IMPL_FACTORY_H_
+
+#include "base/macros.h"
+#include "components/gcm_driver/instance_id/instance_id_factory.h"
+
+namespace instance_id {
+
+class InstanceIDImplFactory : public InstanceIDFactory {
+ public:
+  InstanceIDImplFactory() = default;
+  ~InstanceIDImplFactory() override = default;
+
+  std::unique_ptr<InstanceID> Create(const std::string& app_id,
+                                     gcm::GCMDriver* gcm_driver) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(InstanceIDImplFactory);
+};
+
+}  // namespace instance_id
+
+#endif  // COMPONENTS_GCM_DRIVER_INSTANCE_ID_INSTANCE_ID_IMPL_FACTORY_H_