Prelaunch GPU process after 10 seconds.

This will happen if the --prelaunch-gpu-process command line switch is present or for 5% of users in a field trial.

This is so we can collect some stats of GPU capabilities.

TEST=try, check --prelaunch-gpu-process works
BUG=none

Review URL: http://codereview.chromium.org/3119002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@55510 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed