Move incognito text box down.
Move incognito text box down.

Top line of incognito text box is now at the same point as the top line of the thumbnails in the regular NTP.
This means that themed NTP backgrounds look the way the theme designers planned them to (for example, you can see the "Chrome comet" in Star Gazing, and the pattern swirl in OP), and the regular and incognito NTPs have a unified look.

Review URL: http://codereview.chromium.org/463030

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@33856 0039d316-1c4b-4281-b951-d872f2087c98

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