Move a member function intersectsNode() out from VisibleSelection class

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 376 matching lines @@
         clearLayoutTreeSelection = true;
     } else if (baseRemoved || extentRemoved) {
         // The base and/or extent are about to be removed, but the start and end aren't.
         // Change the base and extent to the start and end, but don't re-validate the
         // selection, since doing so could move the start and end into the node
         // that is about to be removed.
         if (m_selection.isBaseFirst())
             m_selection.setWithoutValidation(m_selection.start(), m_selection.end());
         else
             m_selection.setWithoutValidation(m_selection.end(), m_selection.start());
-    } else if (m_selection.intersectsNode(&node)) {
+    } else if (intersectsNode(m_selection, &node)) {
         // If we did nothing here, when this node's layoutObject was destroyed, the rect that it
         // occupied would be invalidated, but, selection gaps that change as a result of
         // the removal wouldn't be invalidated.
         // FIXME: Don't do so much unnecessary invalidation.
         clearLayoutTreeSelection = true;
     }
 
     if (clearLayoutTreeSelection)
         m_selection.start().document()->layoutView()->clearSelection();
 
@@ skipping 1650 matching lines @@
 
 void showTree(const blink::FrameSelection* sel)
 {
     if (sel)
         sel->showTreeForThis();
     else
         fprintf(stderr, "Cannot showTree for (nil) FrameSelection.\n");
 }
 
 #endif