TEXTAREA element: Updating child nodes without updating textContent should do nothing

third_party/WebKit/Source/core/html/HTMLTextAreaElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2010 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 50 matching lines @@
   bool isValidValue(const String&) const;
 
   void setCols(unsigned);
   void setRows(unsigned);
 
  private:
   FRIEND_TEST_ALL_PREFIXES(HTMLTextAreaElementTest, SanitizeUserInputValue);
   explicit HTMLTextAreaElement(Document&);
 
   enum WrapMethod { NoWrap, SoftWrap, HardWrap };
-  enum SetValueCommonOption { NotSetSelection, SetSeletion };
 
   void didAddUserAgentShadowRoot(ShadowRoot&) override;
   // FIXME: Author shadows should be allowed
   // https://bugs.webkit.org/show_bug.cgi?id=92608
   bool areAuthorShadowsAllowed() const override { return false; }
 
   void handleBeforeTextInsertedEvent(BeforeTextInsertedEvent*) const;
   static String sanitizeUserInputValue(const String&, unsigned maxLength);
   void updateValue() const;
   void setInnerEditorValue(const String&) override;
   void setNonDirtyValue(const String&);
-  void setValueCommon(const String&,
-                      TextFieldEventBehavior,
-                      SetValueCommonOption = NotSetSelection);
+  void setValueCommon(const String&, TextFieldEventBehavior);
 
   bool isPlaceholderVisible() const override { return m_isPlaceholderVisible; }
   void setPlaceholderVisibility(bool) override;
   bool supportsPlaceholder() const override { return true; }
   void updatePlaceholderText() override;
   bool isEmptyValue() const override { return value().isEmpty(); }
   bool isEmptySuggestedValue() const final {
     return suggestedValue().isEmpty();
   }
   bool supportsAutocapitalize() const override { return true; }
@@ skipping 52 matching lines @@
   mutable String m_value;
   mutable bool m_isDirty;
   bool m_valueIsUpToDate;
   unsigned m_isPlaceholderVisible : 1;
   String m_suggestedValue;
 };
 
 }  // namespace blink
 
 #endif  // HTMLTextAreaElement_h