Clear floats when we make a ruby base's children inline

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

Index: third_party/WebKit/Source/core/layout/LayoutBlockFlow.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutBlockFlow.cpp b/third_party/WebKit/Source/core/layout/LayoutBlockFlow.cpp
index eff4a92a2984d6d0e01a3bbd28dca308342cce72..a1805c0c980bd5aba80ae79968460c7d42948e7f 100644
--- a/third_party/WebKit/Source/core/layout/LayoutBlockFlow.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutBlockFlow.cpp
@@ -3128,6 +3128,12 @@ void LayoutBlockFlow::collapseAnonymousBlockChild(LayoutBlockFlow* child) {
       LayoutInvalidationReason::ChildAnonymousBlockChanged);
 
   child->moveAllChildrenTo(this, child->nextSibling(), child->hasLayer());
+  // If we make an object's children inline we are going to frustrate any future
+  // attempts to remove floats from its children's float-lists before the next
+  // layout happens so clear down all the floatlists now - they will be rebuilt
+  // at layout.
+  if (child->childrenInline())
+    removeFloatingObjectsFromDescendants();
   setChildrenInline(child->childrenInline());
 
   children()->removeChildNode(this, child, child->hasLayer());