Bug 894925 - Hold a strong ref to the ImageContainer between DispatchImageClientUpdate and UpdateImageClientNow. r=nical
Bug 894905 - Make AppendBackgroundItemsToTop return a bool instead of an nsDisplayBackgroundImage. r=roc
Bug 894905 - Create a separate nsDisplayItem subclass for -moz-appearance backgrounds. r=roc
Bug 894957 - Don't attempt to draw transparent text. r=roc