GitLab

The code to handle cache clearing didn't land in time for the M27
branch so it has been decided to disable this feature for M27.

This patch will be rolled back after it lands on the M27 branch.

BUG=228989


Review URL: https://chromiumcodereview.appspot.com/13800013

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@192949 0039d316-1c4b-4281-b951-d872f2087c98