Use SkScalar when aligning glyphs in user space.

Drawing text from paths is done in user space and not in device space.
All operations in user space should be performed with SkScalars.

BUG=327031
R=reed@google.com

Review URL: https://codereview.chromium.org/113123005

git-svn-id: http://skia.googlecode.com/svn/trunk@12682 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed