Remove all the NETBSD guards as we do not build nor test on NetBSD.

BUG=286645
R=abarth@chromium.org

Review URL: https://codereview.chromium.org/23536039

Patch from Laszlo Gombos <l.gombos@samsung.com>.

git-svn-id: svn://svn.chromium.org/blink/trunk@157441 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Remove obsolete forward declarations from SVGDocument.

Additionally, add explicit keyword to constructor that takes one argument.

BUG=None

Review URL: https://chromiumcodereview.appspot.com/24069002

git-svn-id: svn://svn.chromium.org/blink/trunk@157442 bbb929c8-8fbe-4397-9dbb-9b2b20218538
CSS Animations: add interpolation test for webkit-text-fill-color

Review URL: https://chromiumcodereview.appspot.com/23882010

git-svn-id: svn://svn.chromium.org/blink/trunk@157443 bbb929c8-8fbe-4397-9dbb-9b2b20218538