WebCore:

        Fix a MSVC warning in PluginViewWin

        Reviewed by Anders Carlsson.

        Test: http/tests/plugins/post-url-file.html

        * plugins/win/PluginViewWin.cpp:
        (WebCore::PluginView::handlePostReadFile): Added a missing return
        statement.

WebKitTools:

        Support for testing NPN_PostURL

        Reviewed by Anders Carlsson.

        * DumpRenderTree/TestNetscapePlugIn.subproj/PluginObject.cpp:
        (toCString): Added this helper function.
        (testPostURLFile): Added. Writes the passed-in content to the
        passed-in file and calls NPN_PostURL with the passed-in URL and
        target.
        (pluginInvoke): Added a case for testPostURLFile.
        * DumpRenderTree/win/LayoutTestControllerWin.cpp:
        (followShortcuts): Changed to allow paths that don't yet exist.

LayoutTests:

        Test that NPN_PostURL works correctly

        Reviewed by Anders Carlsson.

        * http/tests/plugins/post-url-file-expected.txt: Added.
        * http/tests/plugins/post-url-file.html: Added.
        * http/tests/plugins/resources/dump-post.pl: Added.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@33076 268f45cc-cd09-0410-ab3c-d52691b4dbfc