Revert 187669 "Adjust the profile sync service to properly set p..."

NOTE:Will recommit this one after we get session manager to change flags on ChromeOS.

Adjust the profile sync service to properly set per user or per machine flags.

Since flags are handled differntly on ChromeOS now the sync service needs to
change the way it stores its flags until those are moved to proper prefs.

BUG=chromium:181331
TEST=Sync service experiments should still work.
> 
> 
> Review URL: https://chromiumcodereview.appspot.com/12549017

TBR=pastarmovj@chromium.org
Review URL: https://codereview.chromium.org/12426009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@187881 0039d316-1c4b-4281-b951-d872f2087c98
2 files changed