https://bugs.webkit.org/show_bug.cgi?id=75959

Reviewed by Tony Chang.

No new tests since this is refactoring of existing code.
Replace (style()->position() == AbsolutePosition || style()->position() == FixedPosition)
with (style()->isPositioned()).
Replace (style()->position() != AbsolutePosition && style()->position() != FixedPosition)
with (!style()->isPositioned()).

* rendering/RenderBox.cpp:
(WebCore::RenderBox::updateBoxModelInfoFromStyle):
(WebCore::RenderBox::offsetFromContainer):
* rendering/RenderBoxModelObject.cpp:
(WebCore::RenderBoxModelObject::mapAbsoluteToLocalPoint):
* rendering/RenderInline.cpp:
(WebCore::RenderInline::computeRectForRepaint):
* rendering/RenderObject.cpp:
(WebCore::RenderObject::markContainingBlocksForLayout):
(WebCore::RenderObject::setPreferredLogicalWidthsDirty):
(WebCore::RenderObject::invalidateContainerPreferredLogicalWidths):
* rendering/style/RenderStyle.h:
(WebCore::RenderStyleBitfields::isPositioned):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@104802 268f45cc-cd09-0410-ab3c-d52691b4dbfc