If the hint frame's location in the frame tree doesn't match its element's location in the content tree, the hint is useless, and we don't correctly reboot the search without the hint. Add a flag to make the reboot work. Patch courtesy of Danger Inc., r=dbaron, sr=bzbarsky git-svn-id: svn://10.0.0.236/trunk@195051 18797224-902f-48f8-a5cc-f745e15eee43