NEW 182289
Document::updateLayoutIfDimensionsOutOfDate does not take into account zoom level change 
https://bugs.webkit.org/show_bug.cgi?id=182289
Summary Document::updateLayoutIfDimensionsOutOfDate does not take into account zoom l...
Frédéric Wang (:fredw)
Reported 2018-01-30 06:28:13 PST
Currently, HTMLBodyElement::scrollWidth calls Document::updateLayoutIgnorePendingStylesheets. In bug 182230, I'm moving the special handling for the case document.body == document.scrollingElement into Element::scrollWidth. Element::scrollWidth calls Document::updateLayoutIfDimensionsOutOfDate but that does not seem enough to force a relayout when zoom level is changed (especially for Layout/fast/dom/window-scroll-scaling.html) so I had to keep the call to Document::updateLayoutIgnorePendingStylesheets.
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