Bug 952011 - Remove some nsLayoutUtils transform functions that are no longer needed. r=roc
Bug 952011 - Add gfx3DMatrix API for untransformed rects and points. r=bjacob
Bug 952011 - Use Untransform API to safetly untransform points when we have a projective matrix. r=roc
Bug 952011 - Don't restrict Untransform points/rects to the child bounds if we're not a projective matrix. r=bjacob