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rego@igalia.com authored
From the grid layout spec we can extract the following sentence: "If the grid item has an automatic position and a grid span for a named line in a given dimension, instead treat the grid span as one." The main reason is that as you don't know where the item is going to be placed (because of it's auto-positioned), spanning to a particular line makes no sense. Updated GridResolvedPosition code to include this restriction when resolving positions. Adapted auto-placement algorithm implementation in RenderGrid as now it's possible to pass row and column spans to GridIterator::nextEmptyGridArea() simplifying the code. Updated layout test to the new behavior. BUG=353789 TEST=fast/css-grid-layout/grid-item-auto-placement-automatic-span.html Review URL: https://codereview.chromium.org/320093002 git-svn-id: svn://svn.chromium.org/blink/trunk@176295 bbb929c8-8fbe-4397-9dbb-9b2b20218538
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