Continue with InlineBox float->LayoutUnit migration.

Source/core/rendering/RootInlineBox.cpp

Index: Source/core/rendering/RootInlineBox.cpp
diff --git a/Source/core/rendering/RootInlineBox.cpp b/Source/core/rendering/RootInlineBox.cpp
index 2cd1c556ad9e490a9daaddd4006c01571532a62c..e6f5fa0ae8804a2af81de95618609c466b3d627b 100644
--- a/Source/core/rendering/RootInlineBox.cpp
+++ b/Source/core/rendering/RootInlineBox.cpp
@@ -113,12 +113,12 @@ bool RootInlineBox::lineCanAccommodateEllipsis(bool ltr, int blockEdge, int line
     return InlineFlowBox::canAccommodateEllipsis(ltr, blockEdge, ellipsisWidth);
 }
 
-float RootInlineBox::placeEllipsis(const AtomicString& ellipsisStr,  bool ltr, float blockLeftEdge, float blockRightEdge, float ellipsisWidth,
+FloatWillBeLayoutUnit RootInlineBox::placeEllipsis(const AtomicString& ellipsisStr,  bool ltr, FloatWillBeLayoutUnit blockLeftEdge, FloatWillBeLayoutUnit blockRightEdge, FloatWillBeLayoutUnit ellipsisWidth,
                                   InlineBox* markupBox)
 {
     // Create an ellipsis box.
     EllipsisBox* ellipsisBox = new EllipsisBox(renderer(), ellipsisStr, this,
-        ellipsisWidth - (markupBox ? markupBox->logicalWidth() : 0), logicalHeight(),
+        ellipsisWidth - (markupBox ? markupBox->logicalWidth() : ZERO_LAYOUT_UNIT), logicalHeight(),
         x(), y(), !prevRootBox(), isHorizontal(), markupBox);
 
     if (!gEllipsisBoxMap)
@@ -136,15 +136,15 @@ float RootInlineBox::placeEllipsis(const AtomicString& ellipsisStr,  bool ltr, f
     // of that glyph.  Mark all of the objects that intersect the ellipsis box as not painting (as being
     // truncated).
     bool foundBox = false;
-    float truncatedWidth = 0;
-    float position = placeEllipsisBox(ltr, blockLeftEdge, blockRightEdge, ellipsisWidth, truncatedWidth, foundBox);
+    FloatWillBeLayoutUnit truncatedWidth = ZERO_LAYOUT_UNIT;
+    FloatWillBeLayoutUnit position = placeEllipsisBox(ltr, blockLeftEdge, blockRightEdge, ellipsisWidth, truncatedWidth, foundBox);
     ellipsisBox->setLogicalLeft(position);
     return truncatedWidth;
 }
 
-float RootInlineBox::placeEllipsisBox(bool ltr, float blockLeftEdge, float blockRightEdge, float ellipsisWidth, float &truncatedWidth, bool& foundBox)
+FloatWillBeLayoutUnit RootInlineBox::placeEllipsisBox(bool ltr, FloatWillBeLayoutUnit blockLeftEdge, FloatWillBeLayoutUnit blockRightEdge, FloatWillBeLayoutUnit ellipsisWidth, FloatWillBeLayoutUnit &truncatedWidth, bool& foundBox)
 {
-    float result = InlineFlowBox::placeEllipsisBox(ltr, blockLeftEdge, blockRightEdge, ellipsisWidth, truncatedWidth, foundBox);
+    FloatWillBeLayoutUnit result = InlineFlowBox::placeEllipsisBox(ltr, blockLeftEdge, blockRightEdge, ellipsisWidth, truncatedWidth, foundBox);
     if (result == -1) {
         result = ltr ? blockRightEdge - ellipsisWidth : blockLeftEdge;
         truncatedWidth = blockRightEdge - blockLeftEdge;
@@ -168,7 +168,7 @@ bool RootInlineBox::nodeAtPoint(const HitTestRequest& request, HitTestResult& re
     return InlineFlowBox::nodeAtPoint(request, result, locationInContainer, accumulatedOffset, lineTop, lineBottom);
 }
 
-void RootInlineBox::adjustPosition(float dx, float dy)
+void RootInlineBox::adjustPosition(FloatWillBeLayoutUnit dx, FloatWillBeLayoutUnit dy)
 {
     InlineFlowBox::adjustPosition(dx, dy);
     LayoutUnit blockDirectionDelta = isHorizontal() ? dy : dx; // The block direction delta is a LayoutUnit.
@@ -247,9 +247,9 @@ LayoutUnit RootInlineBox::alignBoxesInBlockDirection(LayoutUnit heightOfBlock, G
     return heightOfBlock + maxHeight;
 }
 
-float RootInlineBox::maxLogicalTop() const
+FloatWillBeLayoutUnit RootInlineBox::maxLogicalTop() const
 {
-    float maxLogicalTop = 0;
+    FloatWillBeLayoutUnit maxLogicalTop = ZERO_LAYOUT_UNIT;
     computeMaxLogicalTop(maxLogicalTop);
     return maxLogicalTop;
 }