DevTools: Add a fallback for console message callframe linkifying when scriptId could not be resolved.

No test is added as I was only able to reproduce it in DevTools on DevTools.

R=pfeldman

Review URL: https://chromiumcodereview.appspot.com/23956003

git-svn-id: svn://svn.chromium.org/blink/trunk@157370 bbb929c8-8fbe-4397-9dbb-9b2b20218538