[webkit-reviews] review requested: [Bug 20237] Zero width and space characters are displayed incorrectly if not contained in a fallback font. : [Attachment 23174] Updated Patch

[bugzilla-daemon at webkit.org]

Dimitri Glazkov <dglazkov at chromium.org> has asked  for review:
Bug 20237: Zero width and space characters are displayed incorrectly if not
contained in a fallback font.
https://bugs.webkit.org/show_bug.cgi?id=20237

Attachment 23174: Updated Patch
https://bugs.webkit.org/attachment.cgi?id=23174&action=edit

------- Additional Comments from Dimitri Glazkov <dglazkov at chromium.org>
As discussed on #webkit w/mitz, here's an updated patch. There are
opportunities for optimization, but I thought I'd first get the basics right.