Revert 129627 - Add a sandbox API for broker handle duplication

BUG=119250
Review URL: https://chromiumcodereview.appspot.com/9838083

TBR=jschuh@chromium.org
Review URL: https://chromiumcodereview.appspot.com/9924010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@129629 0039d316-1c4b-4281-b951-d872f2087c98
27 files changed