Remove unnecessary LayoutUnit -> float -> LayoutUnit conversions.

Source/core/layout/line/RootInlineBox.cpp

Index: Source/core/layout/line/RootInlineBox.cpp
diff --git a/Source/core/layout/line/RootInlineBox.cpp b/Source/core/layout/line/RootInlineBox.cpp
index 6ce6155f0776331e7c66982d6cab67bdb12ed2e6..0bb12f846d9a795f6207df1bb50a04b6c4fea2b2 100644
--- a/Source/core/layout/line/RootInlineBox.cpp
+++ b/Source/core/layout/line/RootInlineBox.cpp
@@ -235,7 +235,7 @@ LayoutUnit RootInlineBox::alignBoxesInBlockDirection(LayoutUnit heightOfBlock, G
     if (annotationsAdjustment) {
         // FIXME: Need to handle pagination here. We might have to move to the next page/column as a result of the
         // ruby expansion.
-        moveInBlockDirection(annotationsAdjustment.toFloat());
+        moveInBlockDirection(annotationsAdjustment);
         heightOfBlock += annotationsAdjustment;
     }