1428555 - Remove support for exposeToUntrustedContent in XBL

Status: RESOLVED WONTFIX

(Core :: XBL, task, P2)

Description

[Brian Grinstead [:bgrins]]

<marquee> is the only non-test consumer of this feature: https://dxr.mozilla.org/mozilla-central/search?q=exposeToUntrustedContent&redirect=true.  After Bug 1425874 it won't use this attribute anymore, so the platform feature and tests should be able removable.

Comment 1

[Tim Guan-tin Chien [:timdream] (please needinfo)]

Attachment: Bug 1428555 - Remove support for exposeToUntrustedContent in XBL

This removes the exposeToUntrustedContent attribute in XBL.

Various tests have been moved from mochitest to mochitest-chrome so
the test script can still access to XBL methods and properties.

test_bug1086996.xhtml is removed because it is a regression test for
XBL videocontrols.

file_bug795275.xml is removed because content HTML can no longer
access the Components object via XBL.

Comment 2

[Tim Guan-tin Chien [:timdream] (please needinfo)]

I may not be able to finish this.

https://treeherder.mozilla.org/#/jobs?repo=try&revision=3e843c1a92e0285f87d50187f94a71fb1ab167c0

Comment 3

[Tim Guan-tin Chien [:timdream] (please needinfo)]

I don't think I can finish this off :'(

https://treeherder.mozilla.org/#/jobs?repo=try&revision=13a7684e8bfcbf86d167c12a128d8d357f662b34

Comment 4

[Tim Guan-tin Chien [:timdream] (please needinfo)]

Honestly, I think we are in a place to remove more XBL tests at this point, as the maintenance cost outweighs our use, but I don't think I am in a place to make these decisions.

Comment 5

[Boris Zbarsky [:bzbarsky]]

XBL is now disabled in Firefox (Bug 1583314) and is in the process of being removed from Gecko (Bug 1566221), so closing bugs requesting changes to its implementation as wontfix.