Bug 1421105 Part 5 - Fix anonymous -moz-column-span-wrapper block's style is...
Bug 1421105 Part 5 - Fix anonymous -moz-column-span-wrapper block's style is overridden after restyling. r=bzbarsky,emilio The major change in this patch is ::-moz-column-span-wrapper blocks are no longer linked into the continuation chains when they're created in CreateColumnSpanSiblings(). We can do that because ::-moz-column-span-wrapper is an non-inheriting anon box, which doesn't need to be restyled. This prevents RestyleManager::ProcessPostTraversal or nsIFrame::UpdateStyleOfOwnedChildFrame, which set the same style on all continuations of the frame they are working with, from overriding the ::-moz-column-span-wrapper style. GetNextContinuationWithSameStyle was deleted in bug 1447367. Delete the comment in nsInlineFrame::UpdateStyleOfOwnedAnonBoxesForIBSplit() to avoid confusion. This patch also adds another condition to reframe the multi-column container in MaybeRecreateContainerForFrameRemoval(). That condition is when an element has a "column-span:all" descendant, i.e. the element's frame has "column-span:all" siblings (which is created by CreateColumnSpanSiblings). The added test multicol-span-all-dynamic-remove-006.html will fail without this patch. Depends on D5212 Differential Revision: https://phabricator.services.mozilla.com/D9988 --HG-- extra : moz-landing-system : lando