Reviewed by Sam Weinig.

        Log error messages to the console when we deny a request for a URL.
        These error messages do not appear in LayoutTests, but they do
        appear in the WebInspector.

        * dom/XMLTokenizer.cpp:
        (WebCore::shouldAllowExternalLoad):
        * loader/DocLoader.cpp:
        (WebCore::DocLoader::requestResource):
        (WebCore::DocLoader::printAccessDeniedMessage):
        * loader/DocLoader.h:
        * xml/XSLTProcessor.cpp:
        (WebCore::docLoaderFunc):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@34720 268f45cc-cd09-0410-ab3c-d52691b4dbfc