GitLab

Mechanical change renaming platform window's handlers subdir so making
it more consistent with the other sub-directories.

R=sky@chromium.org

Bug: None
Change-Id: I5a355b4ed70a30ae803ce96c6ffee60cbfdd0bbf
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2347401
Auto-Submit: Nick Yamane <nickdiego@igalia.com>
Commit-Queue: Scott Violet <sky@chromium.org>
Reviewed-by: Scott Violet <sky@chromium.org>
Cr-Commit-Position: refs/heads/master@{#796877}