Reviewed by Maciej.

    Reviewed by Maciej.

        - fixed <rdar://problem/3993722> need oncut and onpaste handlers implemented for <textarea> (needed for widgets)

        * kwq/KWQTextArea.mm:
        (-[KWQTextAreaTextView dispatchHTMLEvent:]): Added.
        (-[KWQTextAreaTextView cut:]): Dispatch "before cut" and "cut" events.
        (-[KWQTextAreaTextView copy:]): Dispatch "before copy" and "copy" events.
        (-[KWQTextAreaTextView paste:]): Dispatch "before paste" and "paste" events.
        (-[KWQTextAreaTextView pasteAsPlainText:]): Ditto.
        (-[KWQTextAreaTextView pasteAsRichText:]): Ditto.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@8534 268f45cc-cd09-0410-ab3c-d52691b4dbfc