commit bfc3b0fc01351c264824c22da6afbe6e64f46c47
author rlanday <rlanday@chromium.org> Tue Jul 25 02:29:57 2017
committer Commit Bot <commit-bot@chromium.org> Tue Jul 25 02:30:14 2017
tree 932d275f1184b4b3dacecb8994f88094bbde24b4
parent 683d610375dbbf8b425948e401a5f7608fa0c2bc

Comment/test for DocumentMarkerList::MarkersIntersectingRange() with collapsed range

When I added this method, I didn't realize it had useful behavior for the case
where a collapsed range is passed in. It turns out it does (it returns markers that
contain the start/end position in their interior), so I'm adding a comment
explaining this behavior and a test case testing it.

BUG=707867

Review-Url: https://codereview.chromium.org/2953183004
Cr-Commit-Position: refs/heads/master@{#489192}