Improve 'stretch' in legacy create typeface for DirectWrite.

Previously the stretch (width) property was set to UNDEFINED, since the
legacy create typeface does not have this information. However, a better
default here is NORMAL.

Review URL: https://codereview.chromium.org/127813003

git-svn-id: http://skia.googlecode.com/svn/trunk@12966 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed