Sandbox the GPU process for Windows

The policy is fairly restrictive token-wise but still the process
needs access to the interactive desktop.

Tweaks to the Job level in a different CL once it has baked in the dev channel.

BUG=48607
TEST=see bug.



Review URL: http://codereview.chromium.org/6594100

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@76675 0039d316-1c4b-4281-b951-d872f2087c98
5 files changed