style: use the XBL styleset quirks mode to match XBL rules.

This fixes bug 1405543.

MozReview-Commit-ID: Dv3mt3Fb8Yp
This commit is contained in:
Emilio Cobos Álvarez 2017-10-09 11:27:01 +02:00
parent 715fc9cea6
commit 100dd18307
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GPG key ID: 056B727BB9C1027C
2 changed files with 16 additions and 2 deletions

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@ -123,6 +123,11 @@ impl PerDocumentStyleData {
/// Create a dummy `PerDocumentStyleData`.
pub fn new(pres_context: RawGeckoPresContextOwned) -> Self {
let device = Device::new(pres_context);
// FIXME(emilio, tlin): How is this supposed to work with XBL? This is
// right now not always honored, see bug 1405543...
//
// Should we just force XBL Stylists to be NoQuirks?
let quirks_mode = unsafe {
(*device.pres_context().mDocument.raw::<nsIDocument>()).mCompatMode
};