Wrapped PassRefPtrs in move where passed to RefPtr constructor.

third_party/WebKit/Source/core/css/invalidation/InvalidationSet.cpp

 /*
  * Copyright (C) 2014 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 290 matching lines @@
   toTracedValue(value.get());
   value->endArray();
   fprintf(stderr, "%s\n", value->toString().ascii().data());
 }
 #endif  // NDEBUG
 
 SiblingInvalidationSet::SiblingInvalidationSet(
     PassRefPtr<DescendantInvalidationSet> descendants)
     : InvalidationSet(InvalidateSiblings),
       m_maxDirectAdjacentSelectors(1),
-      m_descendantInvalidationSet(descendants) {}
+      m_descendantInvalidationSet(std::move(descendants)) {}
 
 DescendantInvalidationSet& SiblingInvalidationSet::ensureSiblingDescendants() {
   if (!m_siblingDescendantInvalidationSet)
     m_siblingDescendantInvalidationSet = DescendantInvalidationSet::create();
   return *m_siblingDescendantInvalidationSet;
 }
 
 DescendantInvalidationSet& SiblingInvalidationSet::ensureDescendants() {
   if (!m_descendantInvalidationSet)
     m_descendantInvalidationSet = DescendantInvalidationSet::create();
   return *m_descendantInvalidationSet;
 }
 
 }  // namespace blink