200px name doesn't match 100px name.

theme_resources.grd references omnibox_popup_border_center.png, not
omnibox_popup_border_middle.png.

BUG=330727
R=thakis@chromium.org

Review URL: https://codereview.chromium.org/100223008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@242571 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 242571