Move makeRange() with VisiblePosition to EditingUtilities.cpp from VisiblePosition.cpp

Source/core/editing/EditingUtilities.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007 Apple 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 1493 matching lines @@
     if (shadowRoot)
         scope = shadowRoot;
     else
         scope = document.documentElement();
 
     RefPtrWillBeRawPtr<Range> range = Range::create(document, firstPositionInNode(scope.get()), p.parentAnchoredEquivalent());
 
     return TextIterator::rangeLength(range->startPosition(), range->endPosition(), true);
 }
 
+EphemeralRange makeRange(const VisiblePosition &start, const VisiblePosition &end)
+{
+    if (start.isNull() || end.isNull())
+        return EphemeralRange();
+
+    Position s = start.deepEquivalent().parentAnchoredEquivalent();
+    Position e = end.deepEquivalent().parentAnchoredEquivalent();
+    if (s.isNull() || e.isNull())
+        return EphemeralRange();
+
+    return EphemeralRange(s, e);
+}
+
 VisiblePosition visiblePositionForIndex(int index, ContainerNode* scope)
 {
     if (!scope)
         return VisiblePosition();
     EphemeralRange range = PlainTextRange(index).createRangeForSelection(*scope);
     // Check for an invalid index. Certain editing operations invalidate indices
     // because of problems with
     // TextIteratorEmitsCharactersBetweenAllVisiblePositions.
     if (range.isNull())
         return VisiblePosition();
@@ skipping 83 matching lines @@
     // if the selection starts just before a paragraph break, skip over it
     if (isEndOfParagraph(visiblePosition))
         return mostForwardCaretPosition(nextPositionOf(visiblePosition).deepEquivalent());
 
     // otherwise, make sure to be at the start of the first selected node,
     // instead of possibly at the end of the last node before the selection
     return mostForwardCaretPosition(visiblePosition.deepEquivalent());
 }
 
 } // namespace blink