Disallow cast/implicit conversion from LayoutUnit to int/unsigned

third_party/WebKit/Source/platform/LengthFunctions.cpp

 /*
     Copyright (C) 1999 Lars Knoll (knoll@kde.org)
     Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
     Copyright (C) 2011 Rik Cabanier (cabanier@adobe.com)
     Copyright (C) 2011 Adobe Systems Incorporated. All rights reserved.
     Copyright (C) 2012 Motorola Mobility, Inc. 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 13 matching lines @@
 #include "platform/LengthFunctions.h"
 
 #include "platform/LayoutUnit.h"
 #include "platform/LengthPoint.h"
 #include "platform/LengthSize.h"
 
 namespace blink {
 
 int intValueForLength(const Length& length, int maximumValue)
 {
-    return static_cast<int>(valueForLength(length, LayoutUnit(maximumValue)));
+    return valueForLength(length, LayoutUnit(maximumValue)).toInt();
 }
 
 float floatValueForLength(const Length& length, float maximumValue)
 {
     switch (length.type()) {
     case Fixed:
         return length.getFloatValue();
     case Percent:
         return static_cast<float>(maximumValue * length.percent() / 100.0f);
     case FillAvailable:
@@ skipping 77 matching lines @@
 {
     return FloatSize(floatValueForLength(lengthSize.width(), boxSize.width()), floatValueForLength(lengthSize.height(), boxSize.height()));
 }
 
 FloatPoint floatPointForLengthPoint(const LengthPoint& LengthPoint, const FloatSize& boxSize)
 {
     return FloatPoint(floatValueForLength(LengthPoint.x(), boxSize.width()), floatValueForLength(LengthPoint.y(), boxSize.height()));
 }
 
 } // namespace blink