Revert 228401 "Enable GPU control lists in tests."

I'm sorry Mr CL, but you may have broken ImageTransportFactoryBrowserTest.TestLostContext
in a sticky way on the XP and Vista waterfall bots. Win7 still likes you.

Problems started at builders:

http://build.chromium.org/p/chromium.win/builders/XP%20Tests%20%281%29/builds/28514
http://build.chromium.org/p/chromium.win/builders/XP%20Tests%20%28dbg%29%282%29/builds/33745
http://build.chromium.org/p/chromium.win/builders/Vista%20Tests%20%281%29/builds/41163

Reverting & monitoring to narrow down the problem space.

> Enable GPU control lists in tests.
> 
> Reland of https://codereview.chromium.org/23534006/ (see that and the bug for more details).
> 
> Also adding INFO-level logging to spell out each control list rule being applied on the bots (makes debugging and understanding failures much easier).
> 
> R=piman@chromium.org
> TBR=jcivelli, piman, zmo
> BUG=295799
> 
> Previously Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=224810
> Reverted: https://src.chromium.org/viewvc/chrome?view=rev&revision=224845
> 
> Previously Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=227977
> Reverted: https://src.chromium.org/viewvc/chrome?view=rev&revision=228014
> 
> Review URL: https://codereview.chromium.org/23703017

TBR=gab@chromium.org

Review URL: https://codereview.chromium.org/27138003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228431 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 228431