Reviewed by Beth.

    Reviewed by Beth.

        - removed non-Loader WebKit dependencies from WebDataProtocol for
        real (whoops) and fix some typos.

        * Loader/WebDataProtocol.m:
        (isCaseInsensitiveEqual): Added.
        (+[WebDataProtocol _webIsDataProtocolURL:]): Avoid WebKit calls.
        (-[WebDataProtocol startLoading]): ditto
        * Loader/WebFrameLoader.m:
        (isCaseInsensitiveEqual): Fixed spelling from isCaseSensitiveEqual.
        (-[WebFrameLoader _canUseResourceForRequest:]): Use proper call.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@15849 268f45cc-cd09-0410-ab3c-d52691b4dbfc