tree 63ce2e192a58e5d11ed7427252f531c913becc99
parent 580c68b86c79b455bdae828456ff68e89137eeef
author Raph Levien <raph@google.com> 1342585494 -0700
committer Raph Levien <raph@google.com> 1342585494 -0700

Make Harfbuzz accept DFLT language tag.

In fonts (such as Roboto) that have only a DFLT language tag in their
OpenType layout tables, Harfbuzz was skipping those features because it
was only matching against the explicit language tag. This patch makes
Harfbuzz check the DFLT tag too, in case there's not an explicit match.

Behdad looked at this patch and said it looks fine.

Note that committing this without having positioning fully in place will
cause regressions, as kerning makes the advances as generated by
Harfbuzz inconsistent with the advances actually used in drawText.

Change-Id: I6ea2eb2a580d00410c05c748e2db577072c25534