Create a PolicyManager instance on the SystemState.
This patch creates the PolicyManager object on the update engine's
SystemState class, which aggregates all the singleton classes.
This patch doesn't add any functionality, other than initialize and
destroy the PolicyManager, State and Providers from the SystemState.
BUG=chromium:354079
TEST=Build.
Change-Id: Ib06d9c3d24926eaca43de2d11770ef6da7d16985
Reviewed-on: https://chromium-review.googlesource.com/191502
Reviewed-by: Gilad Arnold <garnold@chromium.org>
Tested-by: Alex Deymo <deymo@chromium.org>
Commit-Queue: Alex Deymo <deymo@chromium.org>
diff --git a/policy_manager/state_factory.h b/policy_manager/state_factory.h
new file mode 100644
index 0000000..d0b93a1
--- /dev/null
+++ b/policy_manager/state_factory.h
@@ -0,0 +1,26 @@
+// Copyright (c) 2014 The Chromium OS 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 CHROMEOS_PLATFORM_UPDATE_ENGINE_POLICY_MANAGER_STATE_FACTORY_H_
+#define CHROMEOS_PLATFORM_UPDATE_ENGINE_POLICY_MANAGER_STATE_FACTORY_H_
+
+#include "update_engine/clock_interface.h"
+#include "update_engine/dbus_wrapper_interface.h"
+#include "update_engine/policy_manager/state.h"
+
+namespace chromeos_policy_manager {
+
+// Creates and initializes a new State instance using the real providers
+// instantiated using the passed interfaces when needed. The State doesn't
+// take ownership of the passed interfaces, which need to remain available
+// during the life of this instance.
+// If one of the underlying providers fails to initialize, this function returns
+// NULL.
+State* DefaultStateFactory(
+ chromeos_update_engine::DBusWrapperInterface* dbus,
+ chromeos_update_engine::ClockInterface* clock);
+
+} // namespace chromeos_policy_manager
+
+#endif // CHROMEOS_PLATFORM_UPDATE_ENGINE_POLICY_MANAGER_STATE_FACTORY_H_