Missing *explicit* keyword in constructors

Source/core/rendering/svg/RenderSVGText.h

 /*
  * Copyright (C) 2006 Apple Computer, Inc.
  * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) Research In Motion Limited 2010-2012. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 16 matching lines @@
 #include "core/rendering/svg/SVGTextLayoutAttributesBuilder.h"
 
 namespace WebCore {
 
 class RenderSVGInlineText;
 class SVGTextElement;
 class RenderSVGInlineText;
 
 class RenderSVGText FINAL : public RenderSVGBlock {
 public:
-    RenderSVGText(SVGTextElement*);
+    explicit RenderSVGText(SVGTextElement*);
     virtual ~RenderSVGText();
 
     virtual bool isChildAllowed(RenderObject*, RenderStyle*) const;
 
     void setNeedsPositioningValuesUpdate() { m_needsPositioningValuesUpdate = true; }
     virtual void setNeedsTransformUpdate() { m_needsTransformUpdate = true; }
     void setNeedsTextMetricsUpdate() { m_needsTextMetricsUpdate = true; }
     virtual FloatRect repaintRectInLocalCoordinates() const;
 
     static RenderSVGText* locateRenderSVGTextAncestor(RenderObject*);
@@ skipping 64 matching lines @@
     ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isSVGText());
     return static_cast<const RenderSVGText*>(object);
 }
 
 // This will catch anyone doing an unnecessary cast.
 void toRenderSVGText(const RenderSVGText*);
 
 }
 
 #endif