https://bugs.webkit.org/show_bug.cgi?id=21129

        Refactor contents size and scroll offset to be cross-platform.  Reduce further the number
        of platform-specific methods required of ScrollView implementations.

        Reviewed by Tim Hatcher

        * dom/MouseRelatedEvent.cpp:
        (WebCore::contentsX):
        (WebCore::contentsY):
        * html/HTMLBodyElement.cpp:
        (WebCore::HTMLBodyElement::scrollLeft):
        (WebCore::HTMLBodyElement::setScrollLeft):
        (WebCore::HTMLBodyElement::scrollTop):
        (WebCore::HTMLBodyElement::setScrollTop):
        * loader/FrameLoader.cpp:
        (WebCore::FrameLoader::saveScrollPositionAndViewStateToItem):
        * page/DOMWindow.cpp:
        (WebCore::DOMWindow::scrollX):
        (WebCore::DOMWindow::scrollY):
        * page/EventHandler.cpp:
        (WebCore::EventHandler::hitTestResultAtPoint):
        * page/FrameView.cpp:
        (WebCore::FrameView::scrollTo):
        (WebCore::FrameView::windowClipRect):
        * platform/ScrollView.cpp:
        (WebCore::ScrollView::visibleContentRect):
        (WebCore::ScrollView::contentsSize):
        (WebCore::ScrollView::platformContentsSize):
        * platform/ScrollView.h:
        (WebCore::ScrollView::scrollPosition):
        (WebCore::ScrollView::scrollOffset):
        (WebCore::ScrollView::scrollX):
        (WebCore::ScrollView::scrollY):
        (WebCore::ScrollView::contentsWidth):
        (WebCore::ScrollView::contentsHeight):
        * platform/gtk/ScrollViewGtk.cpp:
        (WebCore::ScrollView::ScrollViewPrivate::adjustmentChanged):
        (WebCore::ScrollView::setGtkAdjustments):
        (WebCore::ScrollView::resizeContents):
        (WebCore::ScrollView::contentsWidth):
        (WebCore::ScrollView::contentsHeight):
        (WebCore::ScrollView::scrollOffset):
        (WebCore::ScrollView::maximumScroll):
        (WebCore::ScrollView::scrollBy):
        (WebCore::ScrollView::suppressScrollbars):
        (WebCore::ScrollView::setHScrollbarMode):
        (WebCore::ScrollView::setVScrollbarMode):
        (WebCore::ScrollView::setScrollbarsMode):
        (WebCore::ScrollView::setFrameGeometry):
        (WebCore::ScrollView::updateScrollbars):
        * platform/mac/ScrollViewMac.mm:
        (WebCore::ScrollView::platformContentsSize):
        (WebCore::ScrollView::scrollBy):
        * platform/mac/WidgetMac.mm:
        (WebCore::Widget::convertFromContainingWindow):
        (WebCore::Widget::convertToContainingWindow):
        * platform/qt/ScrollViewQt.cpp:
        (WebCore::ScrollView::ScrollViewPrivate::valueChanged):
        (WebCore::ScrollView::resizeContents):
        (WebCore::ScrollView::setFrameGeometry):
        (WebCore::ScrollView::scrollOffset):
        (WebCore::ScrollView::maximumScroll):
        (WebCore::ScrollView::scrollBy):
        (WebCore::ScrollView::setHScrollbarMode):
        (WebCore::ScrollView::setVScrollbarMode):
        (WebCore::ScrollView::setScrollbarsMode):
        (WebCore::ScrollView::updateScrollbars):
        * platform/win/ScrollViewWin.cpp:
        (WebCore::ScrollView::ScrollViewPrivate::valueChanged):
        (WebCore::ScrollView::ScrollViewPrivate::setAllowsScrolling):
        (WebCore::ScrollView::resizeContents):
        (WebCore::ScrollView::setFrameGeometry):
        (WebCore::ScrollView::scrollOffset):
        (WebCore::ScrollView::maximumScroll):
        (WebCore::ScrollView::scrollBy):
        (WebCore::ScrollView::setHScrollbarMode):
        (WebCore::ScrollView::setVScrollbarMode):
        (WebCore::ScrollView::setScrollbarsMode):
        (WebCore::ScrollView::updateScrollbars):
        * platform/wx/ScrollViewWx.cpp:
        (WebCore::ScrollView::platformVisibleContentRect):
        (WebCore::ScrollView::platformContentsSize):
        * rendering/RenderBlock.cpp:
        (WebCore::RenderBlock::nodeAtPoint):
        * rendering/RenderLayer.cpp:
        (WebCore::RenderLayer::scrollRectToVisible):
        (WebCore::RenderLayer::calculateClipRects):
        (WebCore::RenderLayer::calculateRects):
        * rendering/RenderView.cpp:
        (WebCore::RenderView::absolutePosition):
        (WebCore::RenderView::computeAbsoluteRepaintRect):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@36925 268f45cc-cd09-0410-ab3c-d52691b4dbfc