tree 06dd60418931646ed5056cbd6544ecb29d7903c0
parent 8b3eca95ae90c15bc5520d7ee67f555358cadf77
author fmalita <fmalita@chromium.org> 1444427188 -0700
committer Commit bot <commit-bot@chromium.org> 1444427188 -0700

[TextBlob] Fall back to TightRunBounds when the font bounds are empty

Empty font bounds are likely an indication of a font bug.  As a best
effort, we can use TightRunBounds in this easily detectable case.

Since TightRunBounds only supports kDefault_Positioning currently, the
CL also reinstates handling of kFull_Positioning and
kHorizontal_Positioning (removed in http://crrev.com/858153007).

BUG=507022
R=reed@google.com,bungeman@google.com

Review URL: https://codereview.chromium.org/1399123002