Disallow cast/implicit conversion from LayoutUnit to int/unsigned

third_party/WebKit/Source/core/paint/NinePieceImageGrid.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/paint/NinePieceImageGrid.h"
 
 #include "core/style/ComputedStyle.h"
 #include "core/style/NinePieceImage.h"
 #include "platform/LengthFunctions.h"
 #include "platform/geometry/FloatSize.h"
 #include "platform/geometry/IntSize.h"
 
 namespace blink {
 
 static int computeEdgeWidth(const BorderImageLength& borderSlice, int borderSide, int imageSide,
     int boxExtent)
 {
     if (borderSlice.isNumber())
         return borderSlice.number() * borderSide;
     if (borderSlice.length().isAuto())
         return imageSide;
-    return valueForLength(borderSlice.length(), LayoutUnit(boxExtent));
+    return valueForLength(borderSlice.length(), LayoutUnit(boxExtent)).toInt();
 }
 
 static int computeEdgeSlice(const Length& slice, int maximum)
 {
-    return std::min<int>(maximum, valueForLength(slice, LayoutUnit(maximum)));
+    return std::min<int>(maximum, valueForLength(slice, LayoutUnit(maximum)).toInt());
 }
 
 NinePieceImageGrid::NinePieceImageGrid(const NinePieceImage& ninePieceImage, IntSize imageSize, IntRect borderImageArea,
     const IntRectOutsets& borderWidths)
     : m_borderImageArea(borderImageArea)
     , m_imageSize(imageSize)
     , m_horizontalTileRule((Image::TileRule)ninePieceImage.horizontalRule())
     , m_verticalTileRule((Image::TileRule)ninePieceImage.verticalRule())
     , m_fill(ninePieceImage.fill())
 {
@@ skipping 209 matching lines @@
         drawInfo.source.scale(imageScaleFactor);
 
         // Compensate for source scaling by scaling down the individual tiles.
         drawInfo.tileScale.scale(1 / imageScaleFactor);
     }
 
     return drawInfo;
 }
 
 } // namespace blink