2009-09-04  Mark Mentovai  <mark@chromium.org>

        Reviewed by Dave Hyatt.

        https://bugs.webkit.org/show_bug.cgi?id=28614

        Account for scrollbar state changes that occur during layout.

        * platform/ScrollView.cpp:
        (WebCore::ScrollView::updateScrollbars):

        Perform a layout prior to checking whether the scrollbar modes are
        off, on, or automatic.  The modes may change during layout.

        * WebCore.base.exp:
        * WebCore.order:
        * page/Frame.cpp:
        (WebCore::Frame::createView):
        * page/FrameView.cpp:
        (WebCore::FrameView::FrameView):
        (WebCore::FrameView::resetScrollbars):
        (WebCore::FrameView::layout):
        * page/FrameView.h:
        * platform/ScrollView.h:

        Eliminate duplicated (and incorrect) scrollbar mode tracking between
        FrameView and ScrollView.

WebKit/mac:

2009-09-04  Mark Mentovai  <mark@chromium.org>

        Reviewed by Dave Hyatt.

        https://bugs.webkit.org/show_bug.cgi?id=28614

        Account for scrollbar state changes that occur during layout.

        * WebView/WebDynamicScrollBarsView.mm:
        (-[WebDynamicScrollBarsView updateScrollers]):

        Perform a layout prior to checking whether the scrollbar modes are
        off, on, or automatic.  The modes may change during layout.

        * WebView/WebFrameView.mm:
        (-[WebFrameView _install]):

        Eliminate duplicated (and incorrect) scrollbar mode tracking between
        FrameView and ScrollView.

WebKit/qt:

2009-09-04  Mark Mentovai  <mark@chromium.org>

        Reviewed by Dave Hyatt.

        https://bugs.webkit.org/show_bug.cgi?id=28614

        Account for scrollbar state changes that occur during layout.

        * Api/qwebframe.cpp:
        (QWebFrame::setScrollBarPolicy):

        Eliminate duplicated (and incorrect) scrollbar mode tracking between
        FrameView and ScrollView.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@48064 268f45cc-cd09-0410-ab3c-d52691b4dbfc