Fix bugs 24186, 26996, and 26998 by reworking the quirks-mode line-height handling so that inline elements that do not have text as children (or meet a few other conditions that show the author wants real CSS support) will not increase the size of the line, but will be as close to their correct size as possible without enlarging the line. This fix includes emulation of the strange Nav4/IE quirk that a block's line-height is enforced on the first line of LI elements and the last line of LI, DD, and DT elements. Many of the changes are removing an earlier fix for 24186.
r=buster
2) implemented gfx scrollbars for list boxes
3) fixed progess meter to be an animated gif
4) fixed bugs 23521, 24721, 19114, 20546, 24385, 24457, 23156, 20226, 22543
-r hyatt, troy, rod
bug 23235 r=attinasi; nsTableRowFrame requests max element size when reflowing cell for the 1st time.
bug 24410 r=attinasi; nsTableCellFrame reflow always checks width and height and updates the content empty flag.
bug 3305 r=troy,hyatt; table frame constructor cleanup, put caption in its own child list.
r=troy, a=chofmann
the editor's internal mDisplayFrame was not being removed from the frame manager's map of content->frames, so after enough scrolling in the addressing pane, reflow would try to reference a deleted frame. Fix is to remove the frame from the frame manager every time it's destroyed.
Added API to get/set properties on frames. Also changed nsContainerFrame
to use a property to implement the frame overflow list. This saves 4 bytes
per container frames