Make non-null VisibleSelections creatable only by createVisibleSelection[Deprecated]

third_party/WebKit/Source/core/editing/SelectionAdjuster.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 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 185 matching lines @@
 {
     if (selectionInFlatTree.isNone()) {
         *selection = VisibleSelection();
         return;
     }
 
     const Position& base = toPositionInDOMTree(selectionInFlatTree.base());
     const Position& extent = toPositionInDOMTree(selectionInFlatTree.extent());
 
     if (isCrossingShadowBoundaries(selectionInFlatTree)) {
-        *selection = VisibleSelection(base, extent);
+        *selection = createVisibleSelectionDeprecated(base, extent);
         return;
     }
 
     const Position& position1 = toPositionInDOMTree(selectionInFlatTree.start());
     const Position& position2 = toPositionInDOMTree(selectionInFlatTree.end());
     selection->m_base = base;
     selection->m_extent = extent;
     selection->m_affinity = selectionInFlatTree.m_affinity;
     selection->m_isDirectional = selectionInFlatTree.m_isDirectional;
     selection->m_granularity = selectionInFlatTree.m_granularity;
@@ skipping 51 matching lines @@
         selection->m_end = newEnd;
         return;
     }
     Node* const shadowHost = shadowHostEnd ? shadowHostEnd : shadowHostStart;
     const PositionInFlatTree& newStart = adjustPositionInFlatTreeForStart(selection->start(), shadowHost);
     selection->m_extent = newStart;
     selection->m_start = newStart;
 }
 
 } // namespace blink