Bug 113418

Summary: [Chromium-mac] applying any -webkit-font-feature-setting changes font rendering/layout
Product: WebKit Reporter: Levi Weintraub <leviw>
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: RESOLVED WONTFIX    
Severity: Normal CC: bashi, eric, glenn, leviw, schenney
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Test case none

Description Levi Weintraub 2013-03-27 09:55:18 PDT
Created attachment 195346 [details]
Test case

Just having a valid -webkit-font-feature-setting in affect changes font layout and introduces selection rect bugs. This only appears to affect Chromium Mac.
Comment 1 Glenn Adams 2013-03-27 10:06:04 PDT
does it's presence trigger slow (complex) text path which when not present uses fast path? if so, that could explain much
Comment 2 Levi Weintraub 2013-03-27 10:29:59 PDT
(In reply to comment #1)
> does it's presence trigger slow (complex) text path which when not present uses fast path? if so, that could explain much

I'm fairly certain this is the case, but the selection bug indicates that the fact that it triggers this change isn't properly understood by all of the rendering code (RenderText::canUseSimpleFontCodePath returns true, for example).