Fix Bug 1482854 - Middle clicking an @search Top Site wrongly triggers autoscroll
Fix Bug 1482854 - Middle clicking an @search Top Site wrongly triggers autoscroll

rlr/activity-streams,Mardak/activity-stream,sarracini/activity-stream,mozilla/activity-stream,mozilla/activity-stream,AdamHillier/activity-stream,AdamHillier/activity-stream,rlr/activity-streams,AdamHillier/activity-stream,mozilla/activity-stream,mozilla/activity-streams,AdamHillier/activity-stream,Mardak/activity-stream,mozilla/activity-streams,sarracini/activity-stream,sarracini/activity-stream,rlr/activity-streams,sarracini/activity-stream,mozilla/activity-stream,Mardak/activity-stream,rlr/activity-streams,Mardak/activity-stream