Use actual list of email addresses of people on the chromium team instead of hardcoding a pattern.
Use actual list of email addresses of people on the chromium team instead of
hardcoding a pattern.

BUG=43563
TEST=Make sure non chromium.org accounts of contributors can also send
try jobs

Review URL: https://chromiumcodereview.appspot.com/10792021

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@146883 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build