[Mac] Do not use |+[NSColor selectedMenuItemColor]| in a gradient due to color space issues.
[Mac] Do not use |+[NSColor selectedMenuItemColor]| in a gradient due to color space issues.

BUG=49448
TEST=On both 10.5 and 10.6, open the Wrench menu and click a button. Button has blue gradient.

Review URL: http://codereview.chromium.org/3046052

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@55327 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser