Revert of Cursor to be centrally aligned instead of top aligned

Source/core/rendering/RenderBoxModelObject.cpp

Index: Source/core/rendering/RenderBoxModelObject.cpp
diff --git a/Source/core/rendering/RenderBoxModelObject.cpp b/Source/core/rendering/RenderBoxModelObject.cpp
index 0f19eef4aff7c5bc08d05f9997643a974c4e2bf3..d8e6b964a86ff8542c214b0063fbfc997faca326 100644
--- a/Source/core/rendering/RenderBoxModelObject.cpp
+++ b/Source/core/rendering/RenderBoxModelObject.cpp
@@ -2561,6 +2561,7 @@
     // constructed and this kludge is not called any more. So only the caret size
     // of an empty :first-line'd block is wrong. I think we can live with that.
     RenderStyle* currentStyle = firstLineStyle();
+    LayoutUnit height = style()->fontMetrics().height();
 
     enum CaretAlignment { alignLeft, alignRight, alignCenter };
 
@@ -2612,9 +2613,8 @@
     }
     x = std::min(x, std::max<LayoutUnit>(maxX - caretWidth, 0));
 
-    LayoutUnit height = style()->fontMetrics().height();
-    LayoutUnit verticalSpace = lineHeight(true, currentStyle->isHorizontalWritingMode() ? HorizontalLine : VerticalLine,  PositionOfInteriorLineBoxes) - height;
-    LayoutUnit y = paddingTop() + borderTop() + (verticalSpace / 2);
+    LayoutUnit y = paddingTop() + borderTop();
+
     return currentStyle->isHorizontalWritingMode() ? LayoutRect(x, y, caretWidth, height) : LayoutRect(y, x, height, caretWidth);
 }