Fix crash when using application shortcuts with the opaque browser window.

This is the same fix as the one for the glass browser window in Patch 20
of https://codereview.chromium.org/24647003/. I originally missed this one
because you need a Classic themed Win 7 to start application shortcuts in
a non=aero browser

NOTRY=true
BUG=312275

Review URL: https://codereview.chromium.org/46763004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@231411 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 231411