To do it, just remove /*@noflip*/ annotations in CSSJanus after
we're done processing. They are not needed anymore and some obscure
interactions with CSSMin logic for preserving comments caused
`/*@noflip*/ /*@embed*/ background-image: url(…)` not to work
correctly (it would not be embedded).
This also requires us to always do CSSJanus processing, even when we
don't need flipping, to consistently handle the annotations.
I'm not entirely sure if this is worth it, but I still greatly prefer
doing it to documenting this stupid limitation. :)
Bug: 69698
Change-Id: I311b12b08b2dff9d45efb584db08cf4a11318f59
Given that we have entirely separate code for handling one and the
other, and given the nature of code comments stuffed inside other
structures, this isn't really obvious that they work.
And indeed, "/*@noflip*/ /*@embed*/" doesn't work (filed bug 69698).
Amazingly, all other combinations do.
Change-Id: Ie30bab251eb4abee122c783d057de4102e53d1fc