[LFC] Replace "computed" value with "used" value to match spec language

[LFC] Replace "computed" value with "used" value to match spec language
https://bugs.webkit.org/show_bug.cgi?id=189414

Reviewed by Antti Koivisto.

* layout/FormattingContext.cpp:
(WebCore::Layout::FormattingContext::computeOutOfFlowHorizontalGeometry const):
(WebCore::Layout::FormattingContext::computeOutOfFlowVerticalGeometry const):
* layout/FormattingContext.h:
(WebCore::Layout::FormattingContext::Geometry::outOfFlowVerticalGeometry):
(WebCore::Layout::FormattingContext::Geometry::outOfFlowHorizontalGeometry):
(WebCore::Layout::FormattingContext::Geometry::floatingHeightAndMargin):
(WebCore::Layout::FormattingContext::Geometry::floatingWidthAndMargin):
(WebCore::Layout::FormattingContext::Geometry::inlineReplacedHeightAndMargin):
(WebCore::Layout::FormattingContext::Geometry::inlineReplacedWidthAndMargin):
(WebCore::Layout::FormattingContext::Geometry::complicatedCases):
(WebCore::Layout::FormattingContext::Geometry::outOfFlowReplacedVerticalGeometry):
(WebCore::Layout::FormattingContext::Geometry::outOfFlowReplacedHorizontalGeometry):
(WebCore::Layout::FormattingContext::Geometry::outOfFlowNonReplacedVerticalGeometry):
(WebCore::Layout::FormattingContext::Geometry::outOfFlowNonReplacedHorizontalGeometry):
(WebCore::Layout::FormattingContext::Geometry::floatingReplacedHeightAndMargin):
(WebCore::Layout::FormattingContext::Geometry::floatingReplacedWidthAndMargin):
(WebCore::Layout::FormattingContext::Geometry::floatingNonReplacedWidthAndMargin):
* layout/FormattingContextGeometry.cpp:
(WebCore::Layout::FormattingContext::Geometry::outOfFlowNonReplacedVerticalGeometry):
(WebCore::Layout::FormattingContext::Geometry::outOfFlowNonReplacedHorizontalGeometry):
(WebCore::Layout::FormattingContext::Geometry::outOfFlowReplacedVerticalGeometry):
(WebCore::Layout::FormattingContext::Geometry::outOfFlowReplacedHorizontalGeometry):
(WebCore::Layout::FormattingContext::Geometry::complicatedCases):
(WebCore::Layout::FormattingContext::Geometry::floatingNonReplacedWidthAndMargin):
(WebCore::Layout::FormattingContext::Geometry::floatingReplacedHeightAndMargin):
(WebCore::Layout::FormattingContext::Geometry::floatingReplacedWidthAndMargin):
(WebCore::Layout::FormattingContext::Geometry::outOfFlowVerticalGeometry):
(WebCore::Layout::FormattingContext::Geometry::outOfFlowHorizontalGeometry):
(WebCore::Layout::FormattingContext::Geometry::floatingHeightAndMargin):
(WebCore::Layout::FormattingContext::Geometry::floatingWidthAndMargin):
(WebCore::Layout::FormattingContext::Geometry::inlineReplacedHeightAndMargin):
(WebCore::Layout::FormattingContext::Geometry::inlineReplacedWidthAndMargin):
* layout/blockformatting/BlockFormattingContext.cpp:
(WebCore::Layout::BlockFormattingContext::computeWidthAndMargin const):
(WebCore::Layout::BlockFormattingContext::computeHeightAndMargin const):
* layout/blockformatting/BlockFormattingContext.h:
(WebCore::Layout::BlockFormattingContext::Geometry::inFlowHeightAndMargin):
(WebCore::Layout::BlockFormattingContext::Geometry::inFlowWidthAndMargin):
(WebCore::Layout::BlockFormattingContext::Geometry::inFlowNonReplacedHeightAndMargin):
(WebCore::Layout::BlockFormattingContext::Geometry::inFlowNonReplacedWidthAndMargin):
(WebCore::Layout::BlockFormattingContext::Geometry::inFlowReplacedWidthAndMargin):
* layout/blockformatting/BlockFormattingContextGeometry.cpp:
(WebCore::Layout::BlockFormattingContext::Geometry::inFlowNonReplacedHeightAndMargin):
(WebCore::Layout::BlockFormattingContext::Geometry::inFlowNonReplacedWidthAndMargin):
(WebCore::Layout::BlockFormattingContext::Geometry::inFlowReplacedWidthAndMargin):
(WebCore::Layout::BlockFormattingContext::Geometry::inFlowHeightAndMargin):
(WebCore::Layout::BlockFormattingContext::Geometry::inFlowWidthAndMargin):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@235787 268f45cc-cd09-0410-ab3c-d52691b4dbfc