Move static member function normalizeRange() out from VisibleSelection

Source/core/editing/FrameSelection.cpp

 /*
  * Copyright (C) 2004, 2008, 2009, 2010 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 1725 matching lines @@
     }
 
     if (caretBrowsing)
         m_frame->page()->focusController().setFocusedElement(0, m_frame);
 }
 
 template <typename SelectionType>
 String extractSelectedTextAlgorithm(const FrameSelection& selection, TextIteratorBehavior behavior)
 {
     VisibleSelection visibleSelection = selection.selection();
-    EphemeralRangeTemplate<typename SelectionType::Strategy> range = VisibleSelection::normalizeRange(SelectionType::asRange(visibleSelection));
+    EphemeralRangeTemplate<typename SelectionType::Strategy> range = normalizeRange(SelectionType::asRange(visibleSelection));
     // We remove '\0' characters because they are not visibly rendered to the user.
     return plainText(range, behavior).replace(0, "");
 }
 
 static String extractSelectedText(const FrameSelection& selection, TextIteratorBehavior behavior)
 {
     if (RuntimeEnabledFeatures::selectionForComposedTreeEnabled())
         return extractSelectedTextAlgorithm<VisibleSelection::InComposedTree>(selection, behavior);
     return extractSelectedTextAlgorithm<VisibleSelection::InDOMTree>(selection, behavior);
 }
 
 template <typename SelectionType>
 static String extractSelectedHTMLAlgorithm(const FrameSelection& selection)
 {
     VisibleSelection visibleSelection = selection.selection();
-    EphemeralRangeTemplate<typename SelectionType::Strategy> range = VisibleSelection::normalizeRange(SelectionType::asRange(visibleSelection));
+    EphemeralRangeTemplate<typename SelectionType::Strategy> range = normalizeRange(SelectionType::asRange(visibleSelection));
     return createMarkup(range.startPosition(), range.endPosition(), AnnotateForInterchange, ConvertBlocksToInlines::NotConvert, ResolveNonLocalURLs);
 }
 
 String FrameSelection::selectedHTMLForClipboard() const
 {
     if (!RuntimeEnabledFeatures::selectionForComposedTreeEnabled())
         return extractSelectedHTMLAlgorithm<VisibleSelection::InDOMTree>(*this);
     return extractSelectedHTMLAlgorithm<VisibleSelection::InComposedTree>(*this);
 }
 
@@ skipping 296 matching lines @@
 
 void showTree(const blink::FrameSelection* sel)
 {
     if (sel)
         sel->showTreeForThis();
     else
         fprintf(stderr, "Cannot showTree for (nil) FrameSelection.\n");
 }
 
 #endif