fix(topsites) - TopSitesFeed would fail if it got more pinned sites than slots (#4312)
fix(topsites) - TopSitesFeed would fail if it got more pinned sites than slots (#4312)

Fix Bug 1482484 - Too many pinned links causes RangeError: invalid array length
rlr/activity-streams,mozilla/activity-streams,Mardak/activity-stream,Mardak/activity-stream,rlr/activity-streams,AdamHillier/activity-stream,mozilla/activity-streams,mozilla/activity-stream,sarracini/activity-stream,mozilla/activity-stream,sarracini/activity-stream,sarracini/activity-stream,Mardak/activity-stream,rlr/activity-streams,Mardak/activity-stream,sarracini/activity-stream,AdamHillier/activity-stream,rlr/activity-streams,AdamHillier/activity-stream,AdamHillier/activity-stream,mozilla/activity-stream,mozilla/activity-stream