Reviewed by Holger Freyther.

        https://bugs.webkit.org/show_bug.cgi?id=25889
        [GTK] scrollbar policy for main frame is not implementable

        Adding files for the new test for window-related issues (starting
        with scrollbar policy).

        * GNUmakefile.am:

WebCore

2009-08-28  Gustavo Noronha Silva  <gustavo.noronha@collabora.co.uk>

        Reviewed by Holger Freyther.

        https://bugs.webkit.org/show_bug.cgi?id=25889
        [GTK] scrollbar policy for main frame is not implementable

        Override setScrollbarModes to correctly forward scrollbar modes
        policy changes to client code, via a new platform-specific method,
        scrollbarsPolicyDidChange.

        * page/ChromeClient.h:
        (WebCore::ChromeClient::scrollbarsPolicyDidChange):
        * platform/ScrollView.cpp:
        (WebCore::ScrollView::createScrollbar):
        * platform/ScrollView.h:
        * platform/gtk/ScrollViewGtk.cpp:
        (WebCore::ScrollView::setScrollbarModes):

WebKit/gtk

2009-08-28  Gustavo Noronha Silva  <gustavo.noronha@collabora.co.uk>

        Reviewed by Holger Freyther.

        https://bugs.webkit.org/show_bug.cgi?id=25889
        [GTK] scrollbar policy for main frame is not implementable

        Add properties and a signal to report scrollbar policy changes to
        client code, and a default handler that does the right thing when
        using GtkScrolledWindow.

        * WebCoreSupport/ChromeClientGtk.cpp:
        (WebKit::ChromeClient::scrollbarsModeDidChange):
        * WebCoreSupport/ChromeClientGtk.h:
        * webkit/webkitwebframe.cpp:
        (webkit_web_frame_get_property):
        (webkit_web_frame_class_init):
        (webkit_web_frame_get_horizontal_scrollbar_policy):
        (webkit_web_frame_get_vertical_scrollbar_policy):
        * webkit/webkitwebframe.h:
        * tests/testwindow.c: Added.
        (load_finished_cb):
        (test_webkit_window_scrollbar_policy):
        (main):

WebKit/*

Added empty implementation of new ChromeClient method.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@47866 268f45cc-cd09-0410-ab3c-d52691b4dbfc