Making LayoutUnit conversions to Float type explicit

Source/platform/geometry/FloatSize.cpp

 /*
  * Copyright (C) 2003, 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2005 Nokia.  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.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 19 matching lines @@
 #include "platform/FloatConversion.h"
 #include "platform/geometry/IntSize.h"
 #include "platform/geometry/LayoutSize.h"
 #include <limits>
 #include <math.h>
 
 using namespace std;
 
 namespace WebCore {
 
-FloatSize::FloatSize(const LayoutSize& size) : m_width(size.width()), m_height(size.height())
+FloatSize::FloatSize(const LayoutSize& size)
+    : m_width(size.width().toFloat())
+    , m_height(size.height().toFloat())
 {
 }
 
 float FloatSize::diagonalLength() const
 {
     return sqrtf(diagonalLengthSquared());
 }
 
 bool FloatSize::isZero() const
 {
     return fabs(m_width) < numeric_limits<float>::epsilon() && fabs(m_height) < numeric_limits<float>::epsilon();
 }
 
 bool FloatSize::isExpressibleAsIntSize() const
 {
     return isWithinIntRange(m_width) && isWithinIntRange(m_height);
 }
 
 FloatSize FloatSize::narrowPrecision(double width, double height)
 {
     return FloatSize(narrowPrecisionToFloat(width), narrowPrecisionToFloat(height));
 }
 
 }