Missing *explicit* keyword in constructors

Source/core/rendering/svg/RenderSVGResourceContainer.h

 /*
  * Copyright (C) Research In Motion Limited 2010. 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 12 matching lines @@
 #include "core/rendering/svg/RenderSVGHiddenContainer.h"
 #include "core/rendering/svg/RenderSVGResource.h"
 
 namespace WebCore {
 
 class RenderLayer;
 
 class RenderSVGResourceContainer : public RenderSVGHiddenContainer,
                                    public RenderSVGResource {
 public:
-    RenderSVGResourceContainer(SVGElement*);
+    explicit RenderSVGResourceContainer(SVGElement*);
     virtual ~RenderSVGResourceContainer();
 
     virtual void layout();
     virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) OVERRIDE FINAL;
 
     virtual bool isSVGResourceContainer() const OVERRIDE FINAL { return true; }
     virtual RenderSVGResourceContainer* toRenderSVGResourceContainer() OVERRIDE FINAL { return this; }
 
     static bool shouldTransformOnTextPainting(RenderObject*, AffineTransform&);
     static AffineTransform transformOnNonScalingStroke(RenderObject*, const AffineTransform& resourceTransform);
@@ skipping 48 matching lines @@
 {
     if (RenderSVGResourceContainer* container = getRenderSVGResourceContainerById(document, id))
         return container->cast<Renderer>();
 
     return 0;
 }
 
 }
 
 #endif