DevTools: wrapping arguments addConsoleMessage in ConsoleMessage

Wrapped arguments in remaining addConsoleMessage and addMessage methods in ConsoleMessage class.

R=vsevik@chromium.org

Review URL: https://codereview.chromium.org/419203004

git-svn-id: svn://svn.chromium.org/blink/trunk@179934 bbb929c8-8fbe-4397-9dbb-9b2b20218538