Reviewed by Harrison.

    Reviewed by Harrison.

        - fixed <rdar://problem/4059914> when you select all of a frame's content, need to select the frame in the parent document so it can be easily deleted

        * khtml/khtml_part.h: Added selectFrameElementInParentIfFullySelected.
        * khtml/khtml_part.cpp:
        (isFrame): Added.
        (KHTMLPart::setFocusNodeIfNeeded): Changed to not set focus to a frame; was not what this function was
        intended to do, and caused trouble when trying to select a frame element.
        (KHTMLPart::khtmlMouseReleaseEvent): Call selectFrameElementInParentIfFullySelected.
        (KHTMLPart::selectAll): Call selectFrameElementInParentIfFullySelected.
        (KHTMLPart::selectFrameElementInParentIfFullySelected): Added. Selects the frame element in the parent
        if a frame is entirely selected, which makes it easier to delete or replace the frame and is consistent
        with the changes Maciej made recently for other elements.

        * kwq/WebCoreBridge.mm:
        (-[WebCoreBridge alterCurrentSelection:direction:granularity:]): Call selectFrameElementInParentIfFullySelected.
        (-[WebCoreBridge alterCurrentSelection:verticalDistance:]): Call selectFrameElementInParentIfFullySelected.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@8942 268f45cc-cd09-0410-ab3c-d52691b4dbfc