GitLab

This way there isn't possible race conditions if main is run before
the page finishes loading.

BUG=none
TEST=none
R=darin@chromium.org

Review URL: https://codereview.chromium.org/215373004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@260266 0039d316-1c4b-4281-b951-d872f2087c98