[Editing][DOM][CodeHealth] Remove unused enum Node::UserSelectAllTreatment.

third_party/WebKit/Source/web/WebViewImpl.cpp

 /*
  * Copyright (C) 2011, 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 2533 matching lines @@
         if (toHTMLTextAreaElement(*element).isDisabledOrReadOnly())
             return WebTextInputTypeNone;
         return WebTextInputTypeTextArea;
     }
 
     if (element->isHTMLElement()) {
         if (toHTMLElement(element)->isDateTimeFieldElement())
             return WebTextInputTypeDateTimeField;
     }
 
-    if (element->isContentEditable(Node::UserSelectAllIsAlwaysNonEditable))
+    if (element->isContentEditable())
         return WebTextInputTypeContentEditable;
 
     return WebTextInputTypeNone;
 }
 
 int WebViewImpl::textInputFlags()
 {
     Element* element = focusedElement();
     if (!element)
         return WebTextInputFlagNone;
@@ skipping 2008 matching lines @@
 {
     // TODO(oshima): Investigate if this should return the ScreenInfo's scale factor rather than
     // page's scale factor, which can be 1 in use-zoom-for-dsf mode.
     if (!page())
         return 1;
 
     return page()->deviceScaleFactor();
 }
 
 } // namespace blink