Rewrite editing/spelling/inline-spelling-marker*.html
This patch rewrites the following layout tests:
- editing/spelling/inline_spelling_markers.html
- editing/spelling/inline-spelling-marker-hidpi.html
- editing/spelling/inline-spelling-markers-hidpi-compositied.html
These tests originally test both spell checker and marker appearance. This
patch isolates the spell checking tests to a new layout test
spellcheck_with_text_directions.html, and make the original tests verify
marker appearance only.
This patch hence simplifies the test cases, and also paves the road to
implementing idle time spell checker.
BUG=
517298
Committed:
https://crrev.com/3bb87520e1dfdda1c65596bb79daa4771f6d082a
Cr-Commit-Position: refs/heads/master@{#432404}