Removing more implicit LayoutUnit construction

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

 /*
  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 111 matching lines @@
     LayoutFlexibleBox::layout();
 
     mutableStyleRef().setDirection(oldTextDirection);
     // These should always exist, unless someone mutates the shadow DOM (e.g., in the inspector).
     if (!thumb || !track)
         return;
 
     double percentageOffset = sliderPosition(input).toDouble();
     LayoutUnit availableExtent = isVertical ? track->contentHeight() : track->contentWidth();
     availableExtent -= isVertical ? thumb->size().height() : thumb->size().width();
-    LayoutUnit offset = percentageOffset * availableExtent;
+    LayoutUnit offset(percentageOffset * availableExtent);
     LayoutPoint thumbLocation = thumb->location();
     if (isVertical)
         thumbLocation.setY(thumbLocation.y() + track->contentHeight() - thumb->size().height() - offset);
     else if (style()->isLeftToRightDirection())
         thumbLocation.setX(thumbLocation.x() + offset);
     else
         thumbLocation.setX(thumbLocation.x() - offset);
     thumb->setLocation(thumbLocation);
 
     // We need one-off invalidation code here because painting of the timeline element does not go through style.
     // Instead it has a custom implementation in C++ code.
     // Therefore the style system cannot understand when it needs to be paint invalidated.
     setShouldDoFullPaintInvalidation();
 }
 
 } // namespace blink