in RenderObject::NodeInfo (and then propagating that Widget to
        MouseEventWithHitTestResults).

        This allows RenderListBox and RenderBlock to do the same thing when the
        mouse is over the scrollbar.

        Also land fix to support font-size: 0.

        Reviewed by mjs (scrollbar), eric (font-size)

        * dom/Document.cpp:
        (WebCore::Document::prepareMouseEvent):
        * page/Frame.cpp:
        (WebCore::Frame::passWidgetMouseDownEventToWidget):
        * page/FrameView.cpp:
        (WebCore::selectCursor):
        (WebCore::FrameView::handleMouseMoveEvent):
        (WebCore::FrameView::dispatchMouseEvent):
        * page/MouseEventWithHitTestResults.cpp:
        (WebCore::MouseEventWithHitTestResults::MouseEventWithHitTestResults):
        * page/MouseEventWithHitTestResults.h:
        (WebCore::MouseEventWithHitTestResults::scrollbar):
        * rendering/RenderBlock.cpp:
        (WebCore::RenderBlock::isPointInScrollbar):
        (WebCore::RenderBlock::nodeAtPoint):
        * rendering/RenderBlock.h:
        * rendering/RenderLayer.cpp:
        (WebCore::RenderLayer::hitTest):
        * rendering/RenderLayer.h:
        (WebCore::RenderLayer::getHiddenBehavior):
        * rendering/RenderListBox.cpp:
        (WebCore::RenderListBox::RenderListBox):
        (WebCore::RenderListBox::~RenderListBox):
        (WebCore::RenderListBox::isPointInScrollbar):
        * rendering/RenderListBox.h:
        * rendering/RenderObject.h:
        (WebCore::RenderObject::NodeInfo::NodeInfo):
        (WebCore::RenderObject::NodeInfo::scrollbar):
        (WebCore::RenderObject::NodeInfo::setScrollbar):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@16678 268f45cc-cd09-0410-ab3c-d52691b4dbfc