Web Inspector: [Cookies] CookiesTable should integrate with DataGrid context menu.
https://bugs.webkit.org/show_bug.cgi?id=113496

Reviewed by Pavel Feldman.

Integrate CookiesTable with DataGrid context menu
instead of overriding it.

* inspector/front-end/CookiesTable.js:
Pass context menu callback to DataGrid constructor.
* inspector/front-end/DataGrid.js:
Added context menu callback constructor parameter. Fixed JSDoc.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@147198 268f45cc-cd09-0410-ab3c-d52691b4dbfc