Add missing copyright header
https://bugs.webkit.org/show_bug.cgi?id=107507

* Resources/pagepopups/chromium/calendarPickerChromium.css:
* Resources/pagepopups/chromium/pickerCommonChromium.css:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@142359 268f45cc-cd09-0410-ab3c-d52691b4dbfc