Revert 250094 "Make UI strings consistent in the 2nd person - cr..."

Revert reason: CHECKs because of missing $1 in one of the messages.

> Make UI strings consistent in the 2nd person - crbug.com/156975
>
> BUG=156975
>
> Review URL: https://codereview.chromium.org/145683002

TBR=edwardjung@chromium.org

Review URL: https://codereview.chromium.org/157823003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@250100 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 250100