(no bug) Remove whitespace at end of line in nsPresShell, nsIPresShell, and nsPresContext. (whitespace-only, DONTBUILD)
(no bug) Remove whitespace at end of line in nsCSSFrameConstructor. (whitespace-only, DONTBUILD)
(no bug) Remove whitespace at end of line in FrameLayerBuilder. (whitespace-only, DONTBUILD)