Reviewed by Simon Fraser.

WebCore: 

Make printing store the page height in the RenderView and push that into the layout state to
use the new pagination model.  The old pagination model is retained because it is still used
for embedded WebViews.

* page/FrameView.cpp:
(WebCore::FrameView::reset):
(WebCore::FrameView::layout):
(WebCore::FrameView::forceLayout):
(WebCore::FrameView::forceLayoutForPagination):
(WebCore::FrameView::adjustPageHeight):
* page/FrameView.h:
* page/PrintContext.cpp:
(WebCore::PrintContext::computePageRectsWithPageSizeInternal):
* rendering/RenderBlock.cpp:
(WebCore::RenderBlock::paintChildren):
* rendering/RenderBox.cpp:
(WebCore::RenderBox::calcHeight):
* rendering/RenderImage.cpp:
(WebCore::RenderImage::paintReplaced):
* rendering/RenderLineBoxList.cpp:
(WebCore::RenderLineBoxList::paint):
* rendering/RenderVideo.cpp:
(WebCore::RenderVideo::paintReplaced):
* rendering/RenderView.cpp:
(WebCore::RenderView::RenderView):
(WebCore::RenderView::layout):
(WebCore::RenderView::paint):
(WebCore::RenderView::setBestTruncatedAt):
* rendering/RenderView.h:
(WebCore::RenderView::popLayoutState):
(WebCore::RenderView::pageHeight):
(WebCore::RenderView::setPageHeight):
(WebCore::RenderView::bestTruncatedAt):
(WebCore::RenderView::truncatedAt):
(WebCore::RenderView::setTruncatedAt):
(WebCore::RenderView::printRect):
(WebCore::RenderView::setPrintRect):
(WebCore::RenderView::pushLayoutState):
(WebCore::LayoutStateMaintainer::LayoutStateMaintainer):
(WebCore::LayoutStateMaintainer::push):
(WebCore::LayoutStateMaintainer::pop):

WebKit/mac: 

Make printing store the page height in the RenderView and push that into the layout state to
use the new pagination model.  The old pagination model is retained because it is still used
for embedded WebViews.

* WebView/WebHTMLView.mm:
(-[WebHTMLView _adjustedBottomOfPageWithTop:bottom:limit:]):

LayoutTests: 

Remove the overflow test, since the new model treats overflow:auto/scroll as unsplittable.

* printing/page-break-always-for-overflow-expected.txt: Removed.
* printing/page-break-always-for-overflow.html: Removed.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@67771 268f45cc-cd09-0410-ab3c-d52691b4dbfc