Fix removeChildNode to unmark orthogonal writing mode roots when !notifyLayoutObject

third_party/WebKit/Source/core/layout/LayoutObjectChildList.cpp

Index: third_party/WebKit/Source/core/layout/LayoutObjectChildList.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutObjectChildList.cpp b/third_party/WebKit/Source/core/layout/LayoutObjectChildList.cpp
index 2a2a6969f3dfa5fd43d236c5086e6d25a162d286..fc3084ca5805268e22b9afaf5133a99dc4495b19 100644
--- a/third_party/WebKit/Source/core/layout/LayoutObjectChildList.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutObjectChildList.cpp
@@ -84,6 +84,8 @@ LayoutObject* LayoutObjectChildList::removeChildNode(LayoutObject* owner, Layout
         if (notifyLayoutObject) {
             LayoutCounter::layoutObjectSubtreeWillBeDetached(oldChild);
             oldChild->willBeRemovedFromTree();
+        } else if (oldChild->isBox() && toLayoutBox(oldChild)->isOrthogonalWritingModeRoot()) {
+            toLayoutBox(oldChild)->unmarkOrthogonalWritingModeRoot();
         }
     }