Current work-in-progress crbug.com/567021

third_party/WebKit/Source/core/html/imports/LinkImport.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 102 matching lines @@
          !m_child->loader()->hasError();
 }
 
 void LinkImport::ownerInserted() {
   if (m_child)
     m_child->ownerInserted();
 }
 
 void LinkImport::ownerRemoved() {
   if (m_owner)
-    m_owner->document().styleEngine().importRemoved();
+    m_owner->document().styleEngine().importAddedOrRemoved();
 }
 
 DEFINE_TRACE(LinkImport) {
   visitor->trace(m_child);
   HTMLImportChildClient::trace(visitor);
   LinkResource::trace(visitor);
 }
 
 }  // namespace blink