The goal of this change is to make DataManager use InfoManager to reduce code duplication. Change-Id: Ia4f4c4324453a192995e0f442db0a03628c13e46
Track backup and restore progress based on the sizes of the files as they are being added to the tar backup file. Update the progress bar based on the sizes of the files. Change-Id: Idf649efa1db3e91830b4b2add86203a3f30042ff