Wrapped PassRefPtrs in move where passed to RefPtr constructor.

third_party/WebKit/Source/core/animation/animatable/AnimatableLengthBox.h

 /*
  * 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 43 matching lines @@
  protected:
   PassRefPtr<AnimatableValue> interpolateTo(const AnimatableValue*,
                                             double fraction) const override;
   bool usesDefaultInterpolationWith(const AnimatableValue*) const final;
 
  private:
   AnimatableLengthBox(PassRefPtr<AnimatableValue> left,
                       PassRefPtr<AnimatableValue> right,
                       PassRefPtr<AnimatableValue> top,
                       PassRefPtr<AnimatableValue> bottom)
-      : m_left(left), m_right(right), m_top(top), m_bottom(bottom) {}
+      : m_left(std::move(left)),
+        m_right(std::move(right)),
+        m_top(std::move(top)),
+        m_bottom(std::move(bottom)) {}
   AnimatableType type() const override { return TypeLengthBox; }
   bool equalTo(const AnimatableValue*) const override;
 
   RefPtr<AnimatableValue> m_left;
   RefPtr<AnimatableValue> m_right;
   RefPtr<AnimatableValue> m_top;
   RefPtr<AnimatableValue> m_bottom;
 };
 
 DEFINE_ANIMATABLE_VALUE_TYPE_CASTS(AnimatableLengthBox, isLengthBox());
 
 }  // namespace blink
 
 #endif  // AnimatableLengthBox_h