Custom SmartReplyView layout
Implement SmartReplyView#onMeasure and SmartReplyView#onLayout according
to the redlines in go/p-notifications:
* Smart reply buttons can have at most 2 lines of text.
* Squeeze buttons to 2 lines of text when necessary to fit more
buttons.
* Don't show buttons which have more than 2 lines of text or don't fit
within the notification width.
* Update button background and text color.
Screenshot: https://screenshot.googleplex.com/cSM6Ve7qjb3.png
Bug: 67765414
Test: atest SmartReplyViewTest
Change-Id: Ia161c7f5669e7aef1b8c3480a8836784f0bde055
8 files changed