Stop checking OWNER user in calllog backup.

Only OWNER supports backup today so this check is unnecessary.  It also
happens to have been written backwards and was only running for
non-owners.

Also, calllog entries can have a null handle if manually entered through
the call log APIs. Add code to manage null-value smoothly when restoring
the call log from backup.

Bug: 22299502
Change-Id: I047a0282888fec03f904fbbfe39ac49f3d93886d
1 file changed