Convert editing/deleting/delete-trailing-ws-00[12].html to use w3c test harness
This patch converts "editing/deleting/delete-trailing-ws-00[12].html" to use w3c
test harness and consolidates into "delete_trailing_ws.html" to simplify test
files.
This patch is a preparation of getting rid of grammar checking feature.
BUG=
619452
TEST=n/a; this patch changes a test file
Committed:
https://crrev.com/68ba29152cac4a48f6294a74b1d0938927cec3f6
Cr-Commit-Position: refs/heads/master@{#407098}