Ash: Fix fullscreen window bounds

I was computing the non-client frame top border height incorrectly for fullscreen windows, so it was trying to draw a few pixels of transparent non-client border.

BUG=118774
TEST=visual


Review URL: http://codereview.chromium.org/9810014

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@128014 0039d316-1c4b-4281-b951-d872f2087c98
BrowserNonClientFrameViewAura::~BrowserNonClientFrameViewAura() {
}

BrowserNonClientFrameViewAura::~BrowserNonClientFrameViewAura() {
}
