GitLab

Add more tests cases to LocalCaretRectTest

This patch adds test cases about vertical text and overflowing or
underflowing text to LocalCaretRectTest, to help the implementation
of the NG version of LocalCaretRectOfPosition().

Bug: 771398
Change-Id: I21a6a07cf1246b9dd867e7b5a4fe44aa101a2aff
Reviewed-on: https://chromium-review.googlesource.com/887918Reviewed-by: Yoshifumi Inoue <yosin@chromium.org>
Commit-Queue: Xiaocheng Hu <xiaochengh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#532072}