Manual revert of:

      http://src.chromium.org/viewvc/chrome?view=rev&revision=92760
http://src.chromium.org/viewvc/chrome?view=rev&revision=92717
Basically dead code.

BUG=75070
Review URL: https://codereview.chromium.org/12091039

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@179380 0039d316-1c4b-4281-b951-d872f2087c98