Making LayoutUnit conversions to Float type explicit

Source/platform/geometry/FloatPoint.cpp

 /*
  * Copyright (C) 2004, 2006, 2007 Apple 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 28 matching lines @@
 // Skia has problems when passed infinite, etc floats, filter them to 0.
 static inline SkScalar WebCoreFloatToSkScalar(float f)
 {
     return SkFloatToScalar(std::isfinite(f) ? f : 0);
 }
 
 FloatPoint::FloatPoint(const IntPoint& p) : m_x(p.x()), m_y(p.y())
 {
 }
 
-FloatPoint::FloatPoint(const LayoutPoint& p) : m_x(p.x()), m_y(p.y())
+FloatPoint::FloatPoint(const LayoutPoint& p)
+    : m_x(p.x().toFloat())
+    , m_y(p.y().toFloat())
 {
 }
 
 void FloatPoint::normalize()
 {
     float tempLength = length();
 
     if (tempLength) {
         m_x /= tempLength;
         m_y /= tempLength;
@@ skipping 57 matching lines @@
         return false;
 
     float param = ((d1.x() - p1.x()) * dyLength - (d1.y() - p1.y()) * dxLength) / denom;
 
     intersection.setX(p1.x() + param * pxLength);
     intersection.setY(p1.y() + param * pyLength);
     return true;
 }
 
 }