tree d7becef347c26abf455183173a647f8564a3b4f4
parent b9750892ddfc84c3976fc5d4c9297c6940889767
author reed <reed@google.com> 1413913561 -0700
committer Commit bot <commit-bot@chromium.org> 1413913561 -0700

use - and = to zoom text in slides

BUG=skia:
TBR=
NOTRY=True

Review URL: https://codereview.chromium.org/668023002