upload android base code part6

android/system/update_engine/update_status_utils.h

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+//
+// Copyright (C) 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#ifndef UPDATE_ENGINE_UPDATE_STATUS_UTILS_H_
+#define UPDATE_ENGINE_UPDATE_STATUS_UTILS_H_
+
+#include <string>
+
+#include "update_engine/client_library/include/update_engine/update_status.h"
+
+namespace chromeos_update_engine {
+
+const char* UpdateStatusToString(const update_engine::UpdateStatus& status);
+
+bool StringToUpdateStatus(const std::string& update_status_as_string,
+                          update_engine::UpdateStatus* status);
+
+}  // namespace chromeos_update_engine
+
+#endif  // UPDATE_ENGINE_UPDATE_STATUS_UTILS_H_