afohrman 78ec4eb97d Fix screenshot test failures.
The screenshot tests showed a diff because of a change in the way the collapsed height was being measured. It used to be measured as -ascent, but it was changed to measure the text using the more traditional descent - ascent. This commit changes the collapsed text measurement back to -ascent, and should result in no diff.

PiperOrigin-RevId: 170737363
2017-11-10 15:55:42 -05:00
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