Remove Dashboard support and supporting files.

Source/WebCore/html/HTMLElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 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 96 matching lines @@
         || hasLocalName(imageTag)
         || hasLocalName(imgTag)
         || hasLocalName(inputTag)
         || hasLocalName(isindexTag)
         || hasLocalName(linkTag)
         || hasLocalName(metaTag)
         || hasLocalName(paramTag)
         || hasLocalName(sourceTag)
         || hasLocalName(wbrTag))
         return true;
-    // FIXME: I'm not sure why dashboard mode would want to change the
-    // serialization of <canvas>, that seems like a bad idea.
-#if ENABLE(DASHBOARD_SUPPORT)
-    if (hasLocalName(canvasTag)) {
-        Settings* settings = document()->settings();
-        if (settings && settings->usesDashboardBackwardCompatibilityMode())
-            return true;
-    }
-#endif
     return false;
 }
 
 static inline int unicodeBidiAttributeForDirAuto(HTMLElement* element)
 {
     if (element->hasLocalName(preTag) || element->hasLocalName(textareaTag))
         return CSSValueWebkitPlaintext;
     // FIXME: For bdo element, dir="auto" should result in "bidi-override isolate" but we don't support having multiple values in unicode-bidi yet.
     // See https://bugs.webkit.org/show_bug.cgi?id=73164.
     return CSSValueWebkitIsolate;
@@ skipping 1024 matching lines @@
 #ifndef NDEBUG
 
 // For use in the debugger
 void dumpInnerHTML(WebCore::HTMLElement*);
 
 void dumpInnerHTML(WebCore::HTMLElement* element)
 {
     printf("%s\n", element->innerHTML().ascii().data());
 }
 #endif