Bug 825810 part 1: Make GetFirstNonAnonBoxDescendant() okay with receiving & returning null frame pointers. r=bz
Bug 825810 part 2: When digging for a flex item's first non-anonymous descendant, check table caption list & column-group list. r=bz
bug 862222 pt 1 - bypass the webfont cache when force-reloading the page. r=roc
bug 862222 pt 2 - empty the webfont cache in response to cacheservice:empty-cache notification. r=roc