Revert 176406

      > Do not pass URLs in onUpdated events to extensions unless they have the
> &quottabs&quot permission.
> 
> BUG=168442
> 
> 
> Review URL: https://chromiumcodereview.appspot.com/11824004

TBR=mvrable@chromium.org
Review URL: https://codereview.chromium.org/11866012

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@176426 0039d316-1c4b-4281-b951-d872f2087c98