Wrapped PassRefPtrs in move where passed to RefPtr constructor.

third_party/WebKit/Source/core/css/CSSCustomPropertyDeclaration.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CSSCustomPropertyDeclaration_h
 #define CSSCustomPropertyDeclaration_h
 
 #include "core/css/CSSValue.h"
 #include "core/css/CSSVariableData.h"
 #include "wtf/RefPtr.h"
@@ skipping 41 matching lines @@
         m_value(nullptr),
         m_valueId(id) {
     ASSERT(id == CSSValueInherit || id == CSSValueInitial ||
            id == CSSValueUnset);
   }
 
   CSSCustomPropertyDeclaration(const AtomicString& name,
                                PassRefPtr<CSSVariableData> value)
       : CSSValue(CustomPropertyDeclarationClass),
         m_name(name),
-        m_value(value),
+        m_value(std::move(value)),
         m_valueId(CSSValueInvalid) {}
 
   const AtomicString m_name;
   RefPtr<CSSVariableData> m_value;
   CSSValueID m_valueId;
 };
 
 DEFINE_CSS_VALUE_TYPE_CASTS(CSSCustomPropertyDeclaration,
                             isCustomPropertyDeclaration());
 
 }  // namespace blink
 
 #endif  // CSSCustomPropertyDeclaration_h