Add tools/idl_parser/OWNERS

Add bashi@, haraken@ and yukishiino@, who are Web IDL experts.

BUG=

Review URL: https://codereview.chromium.org/1897293004

Cr-Original-Commit-Position: refs/heads/master@{#388466}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 634ed34131fc35f4f4389c792e9d9beec91a706f
1 file changed