Backed out 2 changesets (bug 1582530) for Creshtest failures in ayout/generic/ReflowInput.cpp. CLOSED TREE

Backed out changeset 536e78fea3de (bug 1582530)
Backed out changeset ae88c31cf531 (bug 1582530)

--HG--
extra : amend_source : cd6928208a1916e72a8f14952adc85f5e5e2c47d