Add an OWNERS file for extensions_api.json
Add an OWNERS file for extensions_api.json

This should hopefully act as a lightweight way of enforcing the extension API
review process.

BUG=none
TEST=no

R=mpcomplete@chromium.org

Review URL: http://codereview.chromium.org/7080036

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@87418 0039d316-1c4b-4281-b951-d872f2087c98

gavinp/chromium,ropik/chromium,gavinp/chromium,ropik/chromium,adobe/chromium,gavinp/chromium,yitian134/chromium,adobe/chromium,gavinp/chromium,yitian134/chromium,yitian134/chromium,adobe/chromium,yitian134/chromium,gavinp/chromium,gavinp/chromium,adobe/chromium,ropik/chromium,gavinp/chromium,ropik/chromium,yitian134/chromium,yitian134/chromium,adobe/chromium,yitian134/chromium,adobe/chromium,ropik/chromium,gavinp/chromium,ropik/chromium,ropik/chromium,adobe/chromium,gavinp/chromium,adobe/chromium,gavinp/chromium,adobe/chromium,yitian134/chromium,ropik/chromium,yitian134/chromium,adobe/chromium,yitian134/chromium,ropik/chromium,adobe/chromium