Move absoluteCaretBoundsOf() for VisiblePosition to VisibleUnits.cpp

Source/core/editing/VisiblePosition.cpp

Index: Source/core/editing/VisiblePosition.cpp
diff --git a/Source/core/editing/VisiblePosition.cpp b/Source/core/editing/VisiblePosition.cpp
index cfb218aadf1bdb6ff602f9d8179f6d3eeb3bda6a..2a8887f3117d7037bae1e4c8c06b4d53576dd326 100644
--- a/Source/core/editing/VisiblePosition.cpp
+++ b/Source/core/editing/VisiblePosition.cpp
@@ -495,16 +495,6 @@ VisiblePosition visiblePositionOf(const PositionInComposedTree& position, TextAf
     return VisiblePosition::createWithoutCanonicalization(PositionWithAffinity(toPositionInDOMTree(canonicalized.position()), canonicalized.affinity()));
 }
 
-IntRect absoluteCaretBoundsOf(const VisiblePosition& visiblePosition)
-{
-    LayoutObject* layoutObject;
-    LayoutRect localRect = localCaretRectOfPosition(visiblePosition.toPositionWithAffinity(), layoutObject);
-    if (localRect.isEmpty() || !layoutObject)
-        return IntRect();
-
-    return layoutObject->localToAbsoluteQuad(FloatRect(localRect)).enclosingBoundingBox();
-}
-
 #ifndef NDEBUG
 
 void VisiblePosition::debugPosition(const char* msg) const