https://bugs.webkit.org/show_bug.cgi?id=121049

Reviewed by Dean Jackson.

This patch begins the migration of the rare data struct of RenderBlock into
RenderBlockFlow. During this process we will temporarily have rare data structs
in both places, but ultimately all of the members are going to move down into
RenderBlockFlow, and if any don't, they will get forced into a hash.
        
For this patch, the margin information is being shifted out of RenderBlock and into
RenderBlockFlow. Any functions that refer to MarginValues or to MarginInfo also got
moved down into RenderBlockFlow. Most of block child layout is now in RenderBlockFlow
after this patch.
        
Note that in many cases the code didn't simply move. There is some type tightening
that happened as well, i.e., places that look for RenderBlock can now look for
RenderBlockFlow instead and let RenderBlock execute the base RenderBox functions.

* rendering/RenderBlock.cpp:
(WebCore::RenderBlock::RenderBlock):
(WebCore::RenderBlock::setPaginationStrut):
(WebCore::RenderBlock::setPageLogicalOffset):
(WebCore::RenderBlock::setBreakAtLineToAvoidWidow):
* rendering/RenderBlock.h:
(WebCore::RenderBlock::setLineGridBox):
(WebCore::RenderBlock::setShapeInsideInfo):
(WebCore::RenderBlock::RenderBlockRareData::RenderBlockRareData):
* rendering/RenderBlockFlow.cpp:
(WebCore::RenderBlockFlow::MarginInfo::MarginInfo):
(WebCore::RenderBlockFlow::RenderBlockFlow):
(WebCore::RenderBlockFlow::layoutBlockChild):
(WebCore::RenderBlockFlow::adjustPositionedBlock):
(WebCore::RenderBlockFlow::adjustFloatingBlock):
(WebCore::RenderBlockFlow::marginValuesForChild):
(WebCore::RenderBlockFlow::collapseMargins):
(WebCore::RenderBlockFlow::clearFloatsIfNeeded):
(WebCore::RenderBlockFlow::marginBeforeEstimateForChild):
(WebCore::RenderBlockFlow::estimateLogicalTopPosition):
(WebCore::RenderBlockFlow::setCollapsedBottomMargin):
(WebCore::RenderBlockFlow::handleAfterSideOfBlock):
(WebCore::RenderBlockFlow::setMaxMarginBeforeValues):
(WebCore::RenderBlockFlow::setMaxMarginAfterValues):
(WebCore::RenderBlockFlow::setMustDiscardMarginBefore):
(WebCore::RenderBlockFlow::setMustDiscardMarginAfter):
(WebCore::RenderBlockFlow::mustDiscardMarginBefore):
(WebCore::RenderBlockFlow::mustDiscardMarginAfter):
(WebCore::RenderBlockFlow::mustDiscardMarginBeforeForChild):
(WebCore::RenderBlockFlow::mustDiscardMarginAfterForChild):
(WebCore::RenderBlockFlow::mustSeparateMarginBeforeForChild):
(WebCore::RenderBlockFlow::mustSeparateMarginAfterForChild):
(WebCore::inNormalFlow):
(WebCore::RenderBlockFlow::applyBeforeBreak):
(WebCore::RenderBlockFlow::applyAfterBreak):
(WebCore::RenderBlockFlow::adjustBlockChildForPagination):
* rendering/RenderBlockFlow.h:
(WebCore::RenderBlockFlow::MarginValues::MarginValues):
(WebCore::RenderBlockFlow::MarginValues::positiveMarginBefore):
(WebCore::RenderBlockFlow::MarginValues::negativeMarginBefore):
(WebCore::RenderBlockFlow::MarginValues::positiveMarginAfter):
(WebCore::RenderBlockFlow::MarginValues::negativeMarginAfter):
(WebCore::RenderBlockFlow::MarginValues::setPositiveMarginBefore):
(WebCore::RenderBlockFlow::MarginValues::setNegativeMarginBefore):
(WebCore::RenderBlockFlow::MarginValues::setPositiveMarginAfter):
(WebCore::RenderBlockFlow::MarginValues::setNegativeMarginAfter):
(WebCore::RenderBlockFlow::RenderBlockFlowRareData::RenderBlockFlowRareData):
(WebCore::RenderBlockFlow::RenderBlockFlowRareData::positiveMarginBeforeDefault):
(WebCore::RenderBlockFlow::RenderBlockFlowRareData::negativeMarginBeforeDefault):
(WebCore::RenderBlockFlow::RenderBlockFlowRareData::positiveMarginAfterDefault):
(WebCore::RenderBlockFlow::RenderBlockFlowRareData::negativeMarginAfterDefault):
(WebCore::RenderBlockFlow::MarginInfo::setAtBeforeSideOfBlock):
(WebCore::RenderBlockFlow::MarginInfo::setAtAfterSideOfBlock):
(WebCore::RenderBlockFlow::MarginInfo::clearMargin):
(WebCore::RenderBlockFlow::MarginInfo::setHasMarginBeforeQuirk):
(WebCore::RenderBlockFlow::MarginInfo::setHasMarginAfterQuirk):
(WebCore::RenderBlockFlow::MarginInfo::setDeterminedMarginBeforeQuirk):
(WebCore::RenderBlockFlow::MarginInfo::setPositiveMargin):
(WebCore::RenderBlockFlow::MarginInfo::setNegativeMargin):
(WebCore::RenderBlockFlow::MarginInfo::setPositiveMarginIfLarger):
(WebCore::RenderBlockFlow::MarginInfo::setNegativeMarginIfLarger):
(WebCore::RenderBlockFlow::MarginInfo::setMargin):
(WebCore::RenderBlockFlow::MarginInfo::setCanCollapseMarginAfterWithChildren):
(WebCore::RenderBlockFlow::MarginInfo::setDiscardMargin):
(WebCore::RenderBlockFlow::MarginInfo::atBeforeSideOfBlock):
(WebCore::RenderBlockFlow::MarginInfo::canCollapseWithMarginBefore):
(WebCore::RenderBlockFlow::MarginInfo::canCollapseWithMarginAfter):
(WebCore::RenderBlockFlow::MarginInfo::canCollapseMarginBeforeWithChildren):
(WebCore::RenderBlockFlow::MarginInfo::canCollapseMarginAfterWithChildren):
(WebCore::RenderBlockFlow::MarginInfo::quirkContainer):
(WebCore::RenderBlockFlow::MarginInfo::determinedMarginBeforeQuirk):
(WebCore::RenderBlockFlow::MarginInfo::hasMarginBeforeQuirk):
(WebCore::RenderBlockFlow::MarginInfo::hasMarginAfterQuirk):
(WebCore::RenderBlockFlow::MarginInfo::positiveMargin):
(WebCore::RenderBlockFlow::MarginInfo::negativeMargin):
(WebCore::RenderBlockFlow::MarginInfo::discardMargin):
(WebCore::RenderBlockFlow::MarginInfo::margin):
(WebCore::RenderBlockFlow::maxPositiveMarginBefore):
(WebCore::RenderBlockFlow::maxNegativeMarginBefore):
(WebCore::RenderBlockFlow::maxPositiveMarginAfter):
(WebCore::RenderBlockFlow::maxNegativeMarginAfter):
(WebCore::RenderBlockFlow::initMaxMarginValues):
* rendering/RenderDeprecatedFlexibleBox.cpp:
(WebCore::RenderDeprecatedFlexibleBox::layoutBlock):
* rendering/RenderTable.cpp:
(WebCore::RenderTable::layout):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@155555 268f45cc-cd09-0410-ab3c-d52691b4dbfc