Disallow cast/implicit conversion from LayoutUnit to int/unsigned

third_party/WebKit/Source/core/layout/LayoutTextControlSingleLine.cpp

 /**
  * Copyright (C) 2006, 2007, 2010 Apple Inc. All rights reserved.
  *           (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  *
  * 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
  * version 2 of the License, or (at your option) any later version.
@@ skipping 256 matching lines @@
 PassRefPtr<ComputedStyle> LayoutTextControlSingleLine::createInnerEditorStyle(const ComputedStyle& startStyle) const
 {
     RefPtr<ComputedStyle> textBlockStyle = ComputedStyle::create();
     textBlockStyle->inheritFrom(startStyle);
     adjustInnerEditorStyle(*textBlockStyle);
 
     textBlockStyle->setWhiteSpace(PRE);
     textBlockStyle->setOverflowWrap(NormalOverflowWrap);
     textBlockStyle->setTextOverflow(textShouldBeTruncated() ? TextOverflowEllipsis : TextOverflowClip);
 
-    int computedLineHeight = lineHeight(true, HorizontalLine, PositionOfInteriorLineBoxes);
+    int computedLineHeight = lineHeight(true, HorizontalLine, PositionOfInteriorLineBoxes).toInt();
     // Do not allow line-height to be smaller than our default.
     if (textBlockStyle->fontSize() >= computedLineHeight)
         textBlockStyle->setLineHeight(ComputedStyle::initialLineHeight());
 
     // We'd like to remove line-height if it's unnecessary because
     // overflow:scroll clips editing text by line-height.
     Length logicalHeight = startStyle.logicalHeight();
     // Here, we remove line-height if the INPUT fixed height is taller than the
     // line-height.  It's not the precise condition because logicalHeight
     // includes border and padding if box-sizing:border-box, and there are cases
@@ skipping 89 matching lines @@
     // inner-editor element overflows the INPUT box intentionally, however it
     // shouldn't affect outside of the INPUT box.  So we ignore child overflow.
 }
 
 HTMLInputElement* LayoutTextControlSingleLine::inputElement() const
 {
     return toHTMLInputElement(node());
 }
 
 } // namespace blink