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

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

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 3056 matching lines @@
   if (child->continuation())
     return;
   // Ruby elements use anonymous wrappers for ruby runs and ruby bases by
   // design, so we don't remove them.
   if (child->isRubyRun() || child->isRubyBase())
     return;
   setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation(
       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());
   child->destroy();
 }
 
 bool LayoutBlockFlow::mergeSiblingContiguousAnonymousBlock(
     LayoutBlockFlow* siblingThatMayBeDeleted) {
   // Note: |this| and |siblingThatMayBeDeleted| may not be adjacent siblings at
   // this point. There may be an object between them which is about to be
@@ skipping 1375 matching lines @@
   return LayoutBlock::invalidatePaintIfNeeded(paintInvalidationState);
 }
 
 void LayoutBlockFlow::invalidateDisplayItemClients(
     PaintInvalidationReason invalidationReason) const {
   BlockFlowPaintInvalidator(*this).invalidateDisplayItemClients(
       invalidationReason);
 }
 
 }  // namespace blink