Make the EV cert message disappear while typing in the omnibox.
Make the EV cert message disappear while typing in the omnibox.

BUG=20917
TEST=Visit paypal.com, then type in the omnibox.  While typing, the EV cert message on the right side of the omnibox should disappear.
Review URL: http://codereview.chromium.org/172118

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@25267 0039d316-1c4b-4281-b951-d872f2087c98

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