Replaced PassRefPtr copies with moves in Source/core.

third_party/WebKit/Source/core/style/ClipPathOperation.h

 /*
  * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above
  *    copyright notice, this list of conditions and the following
  *    disclaimer.
@@ skipping 78 matching lines @@
     String m_url;
     AtomicString m_fragment;
 };
 
 DEFINE_TYPE_CASTS(ReferenceClipPathOperation, ClipPathOperation, op, op->type() == ClipPathOperation::REFERENCE, op.type() == ClipPathOperation::REFERENCE);
 
 class ShapeClipPathOperation final : public ClipPathOperation {
 public:
     static PassRefPtr<ShapeClipPathOperation> create(PassRefPtr<BasicShape> shape)
     {
-        return adoptRef(new ShapeClipPathOperation(shape));
+        return adoptRef(new ShapeClipPathOperation(std::move(shape)));
     }
 
     const BasicShape* basicShape() const { return m_shape.get(); }
     bool isValid() const { return m_shape.get(); }
     const Path& path(const FloatRect& boundingRect)
     {
         ASSERT(m_shape);
         m_path.reset();
         m_path = wrapUnique(new Path);
         m_shape->path(*m_path, boundingRect);
@@ skipping 22 matching lines @@
         return false;
     BasicShape* otherShape = toShapeClipPathOperation(o).m_shape.get();
     if (!m_shape.get() || !otherShape)
         return static_cast<bool>(m_shape.get()) == static_cast<bool>(otherShape);
     return *m_shape == *otherShape;
 }
 
 } // namespace blink
 
 #endif // ClipPathOperation_h