1326915 - Favicon partially changes styling depending on tab position and :hover styling

Status: NEW

(Core :: Graphics, defect, P3)

Description

[arni2033]

>>>   My Info:   Win7_64, Nightly 53, 32bit, ID 20161219030207 (2016-12-19)
STR_1:
0. Set DPI -> 125% :
 A) Set DPI level -> 125% in your OS   [OR]
 B) Set layout.css.devPixelsPerPx -> 1.25
1. Open new window. Open 3 new tabs with url [1]. close other tabs.
2. Open new selected tab. 
3. Hover mouse over the 3rd tab

> [1] http://www.iana.org/domains/reserved

AR:  Corners of favicon in 1st tab is blue/violet, in 2nd tab - violet, in 3rd tab - red
ER:  Favicon should be drawn the same way regardless of tab position and :hover styling

This is regression from bug 1314133. Regression range:
> https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=c04f84afb1bd6b3ea372164012735de6c8f2d582&tochange=b4ade2b0841c5825968f34752d86ee09507a0a9f

Comment 1

[Jerry Shih[:jerry] (UTC+8) (inactive)]

Do we get the dpi info from widget? And is it still work in gpu process proxy-widget?

Comment 2

[David Anderson [:dvander] - inactive, e-mail if emergency]

(In reply to Jerry Shih[:jerry] (UTC+8) from comment #1)
> Do we get the dpi info from widget? And is it still work in gpu process
> proxy-widget?

I think DPI is passed from the widget to the compositor in the CompositorBridgeParent constructor.

Comment 3

[Sylvestre Ledru [:Sylvestre]]

Moving to p3 because no activity for at least 1 year(s).
See https://github.com/mozilla/bug-handling/blob/master/policy/triage-bugzilla.md#how-do-you-triage for more information