[css-scroll-snap-2] Rename snapchanging to scrollsnapchanging
Per the CSS working group resolution[1], snapchanging should be
renamed to scrollsnapchanging. This patch changes the relevant file
names and directory names.
Bug: 40286359, 338290502
Change-Id: I6ea9f887536390ec25ec8aa83908c3fd1bfa7ffd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5538928
Commit-Queue: David Awogbemila awogbemila@chromium.org
Reviewed-by: Kevin Ellis kevers@chromium.org
Cr-Commit-Position: refs/heads/main@{#1305064}