[K6] Replace bind() + GCed pointers with retainedRef()

third_party/WebKit/Source/core/html/HTMLSlotElement.cpp

 /*
  * Copyright (C) 2015 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 323 matching lines @@
         ElementShadow* shadow = parentElementShadow();
         ASSERT(shadow);
         if (!shadow->needsDistributionRecalc() && distributionChanged())
             shadow->setNeedsDistributionRecalc();
     }
 }
 
 void HTMLSlotElement::fireSlotChangeEvent()
 {
     ASSERT(!m_slotchangeEventAdded);
-    Microtask::enqueueMicrotask(WTF::bind(&HTMLSlotElement::dispatchSlotChangeEvent, this));
+    Microtask::enqueueMicrotask(WTF::bind(&HTMLSlotElement::dispatchSlotChangeEvent, retainedRef(this)));
     m_slotchangeEventAdded = true;
 
     Element* shadowHost = isShadowHost(parentElement()) ? parentElement() : nullptr;
     // If this slot is assigned to another slot, fire slot change event of that slot too.
     if (shadowHost && shadowHost->shadowRootIfV1()) {
         if (HTMLSlotElement* assigned = assignedSlot()) {
             if (!assigned->m_slotchangeEventAdded)
                 assigned->fireSlotChangeEvent();
         }
     }
@@ skipping 16 matching lines @@
     visitor->trace(m_distributedNodes);
     visitor->trace(m_fallbackNodes);
     visitor->trace(m_distributedIndices);
     visitor->trace(m_oldAssignedNodes);
     visitor->trace(m_oldDistributedNodes);
     visitor->trace(m_oldFallbackNodes);
     HTMLElement::trace(visitor);
 }
 
 } // namespace blink