Fixed CP dialog toolbar color.

BUG=321767
TEST=manual tests on Lumpy

Review URL: https://codereview.chromium.org/113553006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@242446 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 242446