Collapse the CallStyle buttons to just an icon instead of truncating text.

Fixes: 195019654
Test: post CallStyle notification without custom action; observe text
Test: post CallStyle notification with custom action; observe buttons shrink to icon only.
Test: repeat tests using various font and screen sizes.
Change-Id: Icbd6189a1e03494e481e8672263570ae2657f946
4 files changed