WebArchives do not embed stylesheets referenced by xml-stylesheeet
I'm not sure that ProcessingInstructions ever end up in the DOM, which would be the only way (it seems) that the current web archiver would be able to access the xml-stylesheet href information.
Created attachment 16450 [details]
This patch is made against feature-branch, but it just as easily could apply to trunk (except due to layout test locations)
Comment on attachment 16450 [details]
r=me (but please remove the nil check for styleSheet).
Eric says that he's going to look into what happens to XSL stylesheets in such situation.
Landed on feature-branch as r25805.
This patch was skipped in the feature branch rebasing and will need to be updated
Relanded same patch as r25907.