Always draw the blue gradient background, even if the custom frame is off.  Only paint the custom frame png if the custom frame is on.
Always draw the blue gradient background, even if the custom frame
is off.  Only paint the custom frame png if the custom frame is
on.

This fixes a bug where the blue gradient wans't applied on the window-decoration version.

Review URL: http://codereview.chromium.org/145005


git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@18963 0039d316-1c4b-4281-b951-d872f2087c98

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