Add WebElement::isEditable.

public/web/WebElement.h

 /*
  * Copyright (C) 2009 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 32 matching lines @@
 class WebElement : public WebNode {
 public:
     WebElement() : WebNode() { }
     WebElement(const WebElement& e) : WebNode(e) { }
 
     WebElement& operator=(const WebElement& e) { WebNode::assign(e); return *this; }
     void assign(const WebElement& e) { WebNode::assign(e); }
 
     BLINK_EXPORT bool isFormControlElement() const;
     BLINK_EXPORT bool isTextFormControlElement() const;
+    // If the element is editable, for example by being contenteditable or being
+    // an <input> that isn't readonly or disabled.
+    BLINK_EXPORT bool isEditable() const;
     // Returns the qualified name, which may contain a prefix and a colon.
     BLINK_EXPORT WebString tagName() const;
     // Check if this element has the specified local tag name, and the HTML
     // namespace. Tag name matching is case-insensitive.
     BLINK_EXPORT bool hasHTMLTagName(const WebString&) const;
     BLINK_EXPORT bool hasAttribute(const WebString&) const;
     BLINK_EXPORT void removeAttribute(const WebString&);
     BLINK_EXPORT WebString getAttribute(const WebString&) const;
     BLINK_EXPORT bool setAttribute(const WebString& name, const WebString& value);
     BLINK_EXPORT WebString textContent() const;
@@ skipping 18 matching lines @@
 #if BLINK_IMPLEMENTATION
     WebElement(const PassRefPtrWillBeRawPtr<Element>&);
     WebElement& operator=(const PassRefPtrWillBeRawPtr<Element>&);
     operator PassRefPtrWillBeRawPtr<Element>() const;
 #endif
 };
 
 } // namespace blink
 
 #endif