PropagateUpdateExtent really needs UpdateInformation to work.

Added UpdateInformation() to PropagateUpdateExtent() to make
sure that it functions well when called directly.

Change-Id: Ie17fa7cee5ea57bf7834dbe24c341c628b374c8f
Merge topic 'fix-propagate-ue' into master

af78c3ef PropagateUpdateExtent really needs UpdateInformation to work.