[Editing][DOM][CodeHealth] Make Node::isContentEditable and Node::isRichEditable global functions.

third_party/WebKit/Source/core/html/HTMLElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004-2008, 2013, 2014 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2011 Motorola Mobility. 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
@@ skipping 568 matching lines @@
     else if (equalIgnoringCase(enabled, "false"))
         setAttribute(contenteditableAttr, "false");
     else if (equalIgnoringCase(enabled, "plaintext-only"))
         setAttribute(contenteditableAttr, "plaintext-only");
     else if (equalIgnoringCase(enabled, "inherit"))
         removeAttribute(contenteditableAttr);
     else
         exceptionState.throwDOMException(SyntaxError, "The value provided ('" + enabled + "') is not one of 'true', 'false', 'plaintext-only', or 'inherit'.");
 }
 
+bool HTMLElement::isContentEditable() const

[yosin_UTC9, 2016/07/21 08:25:02]

Why do we need to have |HTMLElement::isContentEditable()| even if we get rid of
|Node::isContentEditable()|?
Will we get rid of this?

[tkent, 2016/07/21 08:29:54]

HTMLElement::isContentEditable is a web-exposed IDL attribute.

+{
+    return blink::isContentEditable(*this);
+}
+
 bool HTMLElement::draggable() const
 {
     return equalIgnoringCase(getAttribute(draggableAttr), "true");
 }
 
 void HTMLElement::setDraggable(bool value)
 {
     setAttribute(draggableAttr, value ? "true" : "false");
 }
 
@@ skipping 432 matching lines @@
     return parentElement() && parentElement()->hasEditableStyle();
 }
 
 void HTMLElement::handleKeypressEvent(KeyboardEvent* event)
 {
     if (!isSpatialNavigationEnabled(document().frame()) || !supportsFocus())
         return;
     // if the element is a text form control (like <input type=text> or <textarea>)
     // or has contentEditable attribute on, we should enter a space or newline
     // even in spatial navigation mode instead of handling it as a "click" action.
-    if (isTextFormControl() || isContentEditable())
+    if (isTextFormControl() || blink::isContentEditable(*this))
         return;
     int charCode = event->charCode();
     if (charCode == '\r' || charCode == ' ') {
         dispatchSimulatedClick(event);
         event->setDefaultHandled();
     }
 }
 
 const AtomicString& HTMLElement::eventParameterName()
 {
@@ skipping 49 matching lines @@
 #ifndef NDEBUG
 
 // For use in the debugger
 void dumpInnerHTML(blink::HTMLElement*);
 
 void dumpInnerHTML(blink::HTMLElement* element)
 {
     printf("%s\n", element->innerHTML().ascii().data());
 }
 #endif