Do not use the utility process on linux.

We don't currently use the zygote to spawn the utility process, so after browser updates bad bugs can occur with mismatched subprocesses. See crbug.com/23327 and crbug.com/22703.

BUG=23327
TEST=Extensions installation/autoupdate and New Tab Page tip download should still work.

Review URL: http://codereview.chromium.org/256036

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@27997 0039d316-1c4b-4281-b951-d872f2087c98
5 files changed