Switch line layout to LayoutUnit.

Source/core/layout/LayoutTreeAsText.cpp

 /*
  * Copyright (C) 2004, 2006, 2007 Apple 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:
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 392 matching lines @@
             ts << ")";
     }
 }
 
 static void writeTextRun(TextStream& ts, const LayoutText& o, const InlineTextBox& run)
 {
     // FIXME: For now use an "enclosingIntRect" model for x, y and logicalWidth, although this makes it harder
     // to detect any changes caused by the conversion to floating point. :(
     int x = run.x();
     int y = run.y();
-    int logicalWidth = ceilf(run.left() + run.logicalWidth()) - x;
+    int logicalWidth = (run.left() + run.logicalWidth()).ceil() - x;
 
     // FIXME: Table cell adjustment is temporary until results can be updated.
     if (o.containingBlock()->isTableCell())
         y -= toLayoutTableCell(o.containingBlock())->intrinsicPaddingBefore();
 
     ts << "text run at (" << x << "," << y << ") width " << logicalWidth;
     if (!run.isLeftToRightDirection() || run.dirOverride()) {
         ts << (!run.isLeftToRightDirection() ? " RTL" : " LTR");
         if (run.dirOverride())
             ts << " override";
@@ skipping 356 matching lines @@
     element->document().updateLayout();
 
     LayoutObject* layoutObject = element->layoutObject();
     if (!layoutObject || !layoutObject->isListItem())
         return String();
 
     return toLayoutListItem(layoutObject)->markerText();
 }
 
 } // namespace blink