tree 77cd6f74a747fa53216f7b55899030a45c35910a
parent 4908fe5617855aace933ad25b1071170e2606688
author chaviw <chaviw@google.com> 1501176359 -0700
committer chaviw <chaviw@google.com> 1503512882 -0700

Add a re-parent function to re-parent a specific child.

This is similar to reparentChildren, but the reparentChild will
only re-parent a specific child to the new parent and not all
children.

Test: Added test in Transaction_test for reparentChild.

Change-Id: I4275e0d5f1d5601b489956753c78a56d1a5d4c1c