<style> elements). Also remove the methods for blowing away the ruletree
during a style reresolve, since ruletrees are now garbage-collected. Bug
196557, r+sr=dbaron
and removed via the DOM. Clean up the nsIDocument stylesheet accessors. Clean
up nsIDocumentObserver stylesheet stuff a bit. Make style sheets visible in
the CSSOM (though not completely accessible) from the moment the load is kicked
off. Make us have sheet objects that can be manipulated via CSSOM even for
failed loads. Bug 107567, bug 47734, bug 57225, bug 178407.
r=sicking, sr=peterv.
media rules implement nsIDOMCSSMediaRule. Fix insertRule() to be able
to insert into the middle of a rule list. Fix issues with stylesheets
not getting dirtied when media lists are modified. bug 93977,
r=pierre, sr=jst
tracking the attributes which appear in CSS selectors, and only firing
a complete reresolution when we change one of those. In the irrelevant-attr
case, we just let the frame update itself and get on with our lives right
away. Fixed 38378, r=brendan, booyah.
Also, when setting an attribute to the same value that it currently holds,
don't think about it especially hard, and _don't_ go anywhere near the
style code. Fixed 21879, r=brendan, boo_yah_.
