Fix double control key issue with the omnibox.

Previously holding two controls keys and releasing one would show the
non-control omnibox results, but hitting enter would take the control results.
Fix this by showing the correct results if any control key is held down.

Review URL: http://codereview.chromium.org/173324


git-svn-id: svn://svn.chromium.org/chrome/trunk/src@24253 0039d316-1c4b-4281-b951-d872f2087c98