429017 - symbol font quirk (for <font face=symbol>) not present on Windows even when it is supposed to be

Status: RESOLVED WONTFIX

(Core :: Graphics, defect)

Description

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

This is a regression from bug 399636.  The symbol font quirk is supposed to be present when familyNameQuirks on the gfxFontStyle is true.  The patch in bug 399636 instead changed it from being present always to being present never.  Adding back the last chunk in that patch, with the block conditioned on familyNameQuirks, gets us to the expected behavior and matches Firefox 2 on Windows.

Steps to reproduce:  load layout/reftests/bugs/399696-quirks-html.html

Expected results: ΠΑΣΣ
Actual results: PASS

Note that the other three tests (quirks-css, standards-css, and standards-html) *should* say PASS.

Comment 1

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Attachment: patch

Comment 2

[Damon Sicore (:damons)]

David, suggestion on whether or not we block on this?

Comment 3

[Damon Sicore (:damons)]

Don't think we'd hold the release for this.  -'ing.  IM'd David to at least get a review request into Pav.

Please re-nom if you think otherwise.

Comment 4

[Stuart Parmenter]

Comment on attachment 315633 [details] [diff] [review]
patch

This breaks something but I don't recall what.  Let me see if I can find a Windows box to test this on

Comment 13

[nounours18200]

I am not able to define if this bug is difficult to fix or not, but it is definitely a major failure for all the scientists because Firefox displays a "m", which means 1/1000, instead of "µ" which means 1/1,000,000. 
Most of my colleagues are obliged to move back to Internet Explorer because we cannot take the risk to understand that a value is 1 thousand bigger than expected...

Comment 14

[Karl Tomlinson (:karlt)]

(In reply to comment #13)
If you don't want to take the risk that your micro symbol might be interpreted as an m, then please use U+00B5 MICRO SIGN not U+006D LATIN SMALL LETTER M.

Comment 17

[Masatoshi Kimura [:emk]]

symbol font quirk was completely removed by bug 636040. WONTFIX?