Fix crashes in significant change when wifi hasn't started

The SignificantChange state machine doesn't actually have a concept of
if Wifi is on or not. This will simply ensure that it is not possible to
cause a crash.

Change-Id: I8ff87364bf7d5c87f0519b6cdc32d164facf30eb
Fixes: 29237535
1 file changed
tree: cc136b6aacde030524fbc28fcdb802a50799831d
  1. service/
  2. tests/