Make everyone an OWNER in Source/web/tests
Make everyone an OWNER in Source/web/tests

This matches our policy for LayoutTests.

Changes to directories like Source/core sometimes require changes
here without having to touch other parts of Source/web, resulting
in extra review overhead.  After discussion with Source/web
OWNERS we've decided to do the lowest-friction thing possible
(but will revisit if it proves to cause any issues).

BUG=None

Review URL: https://codereview.chromium.org/797353002

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@187080 bbb929c8-8fbe-4397-9dbb-9b2b20218538

PeterWangIntel/blink-crosswalk,Bysmyyr/blink-crosswalk,modulexcite/blink,PeterWangIntel/blink-crosswalk,PeterWangIntel/blink-crosswalk,XiaosongWei/blink-crosswalk,Bysmyyr/blink-crosswalk,smishenk/blink-crosswalk,XiaosongWei/blink-crosswalk,kurli/blink-crosswalk,XiaosongWei/blink-crosswalk,jtg-gg/blink,nwjs/blink,Bysmyyr/blink-crosswalk,XiaosongWei/blink-crosswalk,modulexcite/blink,smishenk/blink-crosswalk,Pluto-tv/blink-crosswalk,kurli/blink-crosswalk,Pluto-tv/blink-crosswalk,jtg-gg/blink,smishenk/blink-crosswalk,Pluto-tv/blink-crosswalk,kurli/blink-crosswalk,jtg-gg/blink,smishenk/blink-crosswalk,nwjs/blink,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,nwjs/blink,Bysmyyr/blink-crosswalk,nwjs/blink,jtg-gg/blink,PeterWangIntel/blink-crosswalk,Bysmyyr/blink-crosswalk,kurli/blink-crosswalk,modulexcite/blink,PeterWangIntel/blink-crosswalk,smishenk/blink-crosswalk,jtg-gg/blink,kurli/blink-crosswalk,XiaosongWei/blink-crosswalk,Pluto-tv/blink-crosswalk,nwjs/blink,modulexcite/blink,Bysmyyr/blink-crosswalk,jtg-gg/blink,Bysmyyr/blink-crosswalk,jtg-gg/blink,XiaosongWei/blink-crosswalk,modulexcite/blink,nwjs/blink,Bysmyyr/blink-crosswalk,kurli/blink-crosswalk,kurli/blink-crosswalk,smishenk/blink-crosswalk,modulexcite/blink,nwjs/blink,modulexcite/blink,modulexcite/blink,kurli/blink-crosswalk,smishenk/blink-crosswalk,PeterWangIntel/blink-crosswalk,Pluto-tv/blink-crosswalk,modulexcite/blink,XiaosongWei/blink-crosswalk,PeterWangIntel/blink-crosswalk,Bysmyyr/blink-crosswalk,XiaosongWei/blink-crosswalk,jtg-gg/blink,jtg-gg/blink,PeterWangIntel/blink-crosswalk,nwjs/blink,PeterWangIntel/blink-crosswalk,jtg-gg/blink,PeterWangIntel/blink-crosswalk,Pluto-tv/blink-crosswalk,XiaosongWei/blink-crosswalk,smishenk/blink-crosswalk,nwjs/blink,Pluto-tv/blink-crosswalk,XiaosongWei/blink-crosswalk,kurli/blink-crosswalk,Bysmyyr/blink-crosswalk,Pluto-tv/blink-crosswalk,nwjs/blink,modulexcite/blink,kurli/blink-crosswalk,smishenk/blink-crosswalk,smishenk/blink-crosswalk