Add Caladea (regular, bold, italic, bold italic) font.

Caladea is metric-compatible with Cambria.  (Its repertoire is smaller,
though). A few more metric-compatible fonts will be added down the load
so that I made a new package (crosextrafonts) for them.

Listed crosextrafonts in the chromeos-fonts ebuild file.

The corresponding Skia change is at
    https://codereview.chromium.org/12879008

BUG=chromium:168879
TEST=Go to a page using Cambria and make sure Caladea (instead of 'Arimo') is
used.

Change-Id: I9141f54c06d014b156c567322e888d6b5f15b0d1
Reviewed-on: https://gerrit.chromium.org/gerrit/45888
Reviewed-by: Jungshik Shin (jungshik at google) <jshin@chromium.org>
Tested-by: Jungshik Shin (jungshik at google) <jshin@chromium.org>
Commit-Queue: Jungshik Shin (jungshik at google) <jshin@chromium.org>
6 files changed