Making LayoutUnit conversions to Int types explicit in core/accessibility

Source/core/accessibility/AXInlineTextBox.cpp

 /*
  * Copyright (C) 2013, 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:
  *
  * 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
@@ skipping 80 matching lines @@
 
     unsigned len = m_inlineTextBox->len();
     Vector<float> widths;
     m_inlineTextBox->characterWidths(widths);
     ASSERT(widths.size() == len);
     offsets.resize(len);
 
     float widthSoFar = 0;
     for (unsigned i = 0; i < len; i++) {
         widthSoFar += widths[i];
-        offsets[i] = LayoutUnit::fromFloatRound(widthSoFar);
+        offsets[i] = lroundf(widthSoFar);
     }
 }
 
 void AXInlineTextBox::wordBoundaries(Vector<PlainTextRange>& words) const
 {
     if (!m_inlineTextBox)
         return;
 
     Vector<AbstractInlineTextBox::WordBoundaries> wordBoundaries;
     m_inlineTextBox->wordBoundaries(wordBoundaries);
@@ skipping 32 matching lines @@
     case AbstractInlineTextBox::TopToBottom:
         return AccessibilityTextDirectionTopToBottom;
     case AbstractInlineTextBox::BottomToTop:
         return AccessibilityTextDirectionBottomToTop;
     }
 
     return AccessibilityTextDirectionLeftToRight;
 }
 
 } // namespace WebCore