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

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

 /*
  * Copyright (C) 2007, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2012 Google 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.
@@ skipping 210 matching lines @@
     if (offset < 0) {
         exceptionState.throwDOMException(IndexSizeError, String::number(offset) + " is not a valid offset.");
         return;
     }
 
     if (!isValidForPosition(node))
         return;
     Range::checkNodeWOffset(node, offset, exceptionState);
     if (exceptionState.hadException())
         return;
-    frame()->selection().setSelection(VisibleSelection(Position(node, offset), frame()->selection().isDirectional()));
+    frame()->selection().setSelection(createVisibleSelectionDeprecated(Position(node, offset), frame()->selection().isDirectional()));
 }
 
 void DOMSelection::collapseToEnd(ExceptionState& exceptionState)
 {
     if (!isAvailable())
         return;
 
     const VisibleSelection& selection = frame()->selection().selection();
 
     if (selection.isNone()) {
@@ skipping 43 matching lines @@
 
     if (!baseNode || !extentNode)
         UseCounter::count(frame(), UseCounter::SelectionSetBaseAndExtentNull);
 
     if (!isValidForPosition(baseNode) || !isValidForPosition(extentNode))
         return;
 
     Position base = createPosition(baseNode, baseOffset);
     Position extent = createPosition(extentNode, extentOffset);
     const bool selectionHasDirection = true;
-    frame()->selection().setSelection(VisibleSelection(base, extent, SelDefaultAffinity, selectionHasDirection));
+    frame()->selection().setSelection(createVisibleSelectionDeprecated(base, extent, SelDefaultAffinity, selectionHasDirection));
 }
 
 void DOMSelection::modify(const String& alterString, const String& directionString, const String& granularityString)
 {
     if (!isAvailable())
         return;
 
     FrameSelection::EAlteration alter;
     if (equalIgnoringCase(alterString, "extend"))
         alter = FrameSelection::AlterationExtend;
@@ skipping 54 matching lines @@
         exceptionState.throwDOMException(IndexSizeError, String::number(offset) + " is larger than the given node's length.");
         return;
     }
 
     if (!isValidForPosition(node))
         return;
 
     const Position& base = frame()->selection().base();
     const Position& extent = createPosition(node, offset);
     const bool selectionHasDirection = true;
-    const VisibleSelection newSelection(base, extent, TextAffinity::Downstream, selectionHasDirection);
+    const VisibleSelection newSelection = createVisibleSelectionDeprecated(base, extent, TextAffinity::Downstream, selectionHasDirection);
     frame()->selection().setSelection(newSelection);
 }
 
 Range* DOMSelection::getRangeAt(int index, ExceptionState& exceptionState)
 {
     if (!isAvailable())
         return nullptr;
 
     if (index < 0 || index >= rangeCount()) {
         exceptionState.throwDOMException(IndexSizeError, String::number(index) + " is not a valid index.");
@@ skipping 207 matching lines @@
         m_treeScope->document().addConsoleMessage(ConsoleMessage::create(JSMessageSource, ErrorMessageLevel, message));
 }
 
 DEFINE_TRACE(DOMSelection)
 {
     visitor->trace(m_treeScope);
     DOMWindowProperty::trace(visitor);
 }
 
 } // namespace blink