Make the constructor of a LayoutRect from an IntRect explicit.

Source/core/layout/svg/LayoutSVGRoot.cpp

 /*
  * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2007, 2008, 2009 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Google, Inc.
  * Copyright (C) Research In Motion Limited 2011. 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
@@ skipping 331 matching lines @@
     LayoutRect paintInvalidationRect = enclosingLayoutRect(contentPaintInvalidationRect);
     // If the box is decorated or is overflowing, extend it to include the border-box and overflow.
     if (m_hasBoxDecorationBackground || hasOverflowModel()) {
         // The selectionRect can project outside of the overflowRect, so take their union
         // for paint invalidation to avoid selection painting glitches.
         LayoutRect decoratedPaintInvalidationRect = unionRect(localSelectionRect(false), visualOverflowRect());
         paintInvalidationRect.unite(decoratedPaintInvalidationRect);
     }
 
     // Compute the paint invalidation rect in the parent coordinate space.
-    LayoutRect rect = enclosingIntRect(paintInvalidationRect);
+    LayoutRect rect(enclosingIntRect(paintInvalidationRect));
     LayoutReplaced::mapRectToPaintInvalidationBacking(paintInvalidationContainer, rect, paintInvalidationState);
     return rect;
 }
 
 void LayoutSVGRoot::mapRectToPaintInvalidationBacking(const LayoutBoxModelObject* paintInvalidationContainer, LayoutRect& rect, const PaintInvalidationState* paintInvalidationState) const
 {
     // Note that we don't apply the border-box transform here - it's assumed
     // that whoever called us has done that already.
 
     // Apply initial viewport clip
     if (shouldApplyViewportClip())
-        rect.intersect(pixelSnappedBorderBoxRect());
+        rect.intersect(LayoutRect(pixelSnappedBorderBoxRect()));
 
     LayoutReplaced::mapRectToPaintInvalidationBacking(paintInvalidationContainer, rect, paintInvalidationState);
 }
 
 // This method expects local CSS box coordinates.
 // Callers with local SVG viewport coordinates should first apply the localToBorderBoxTransform
 // to convert from SVG viewport coordinates to local CSS box coordinates.
 void LayoutSVGRoot::mapLocalToContainer(const LayoutBoxModelObject* paintInvalidationContainer, TransformState& transformState, MapCoordinatesFlags mode, bool* wasFixed, const PaintInvalidationState* paintInvalidationState) const
 {
     ASSERT(mode & ~IsFixed); // We should have no fixed content in the SVG rendering tree.
@@ skipping 50 matching lines @@
             updateHitTestResult(result, pointInBorderBox);
             if (!result.addNodeToListBasedTestResult(node(), request, locationInContainer, boundsRect))
                 return true;
         }
     }
 
     return false;
 }
 
 }