[DONE] DOM updates
See bug 744783.
[fredw]: The known issues are fixed.
[DONE] GFX Glue Layer Removal
An important step for MathML is bug 663740, which will allow to start the work on OpenType MATH table, to support more MathML fonts. More generally, see bug 430829, Gfx_glue_layer_removal and the thread on mozilla.dev.tech.gfx.
[fredw]: the main refactoring bug 663740 is done.
[DONE] Attribute Mapping into Style
We are using private attributes and pre-defined rules in mathml.css to map some MathML attributes into CSS. This approach shows its limits for length attributes (bug 330964) and exposes unwanted attributes to the DOM (bug 527201). We should rewrite this in a cleaner way (bug 69409).
[fredw]: the private attributes have been removed.
[DONE] Width Computation
[fredw]: the main preferred width bugs are fixed.
Box Model for MathML
The <math> element is implemented as an inline-box, but this gives an incorrect height computation (bug 219873). We should also allow linebreaking inside <mrow>'s, as specified by the rules of MathML 3 (bug 508120).