Remove iframe@seamless

Source/core/html/HTMLIFrameElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Simon Hausmann (hausmann@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2006, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Ericsson AB. 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
@@ skipping 31 matching lines @@
     setHasCustomStyleCallbacks();
 }
 
 PassRefPtr<HTMLIFrameElement> HTMLIFrameElement::create(Document& document)
 {
     return adoptRef(new HTMLIFrameElement(document));
 }
 
 bool HTMLIFrameElement::isPresentationAttribute(const QualifiedName& name) const
 {
-    if (name == widthAttr || name == heightAttr || name == alignAttr || name == frameborderAttr || name == seamlessAttr)
+    if (name == widthAttr || name == heightAttr || name == alignAttr || name == frameborderAttr)
         return true;
     return HTMLFrameElementBase::isPresentationAttribute(name);
 }
 
 void HTMLIFrameElement::collectStyleForPresentationAttribute(const QualifiedName& name, const AtomicString& value, MutableStylePropertySet* style)
 {
     if (name == widthAttr)
         addHTMLLengthToStyle(style, CSSPropertyWidth, value);
     else if (name == heightAttr)
         addHTMLLengthToStyle(style, CSSPropertyHeight, value);
@@ skipping 17 matching lines @@
             HTMLDocument& document = toHTMLDocument(this->document());
             document.removeExtraNamedItem(m_name);
             document.addExtraNamedItem(value);
         }
         m_name = value;
     } else if (name == sandboxAttr) {
         String invalidTokens;
         setSandboxFlags(value.isNull() ? SandboxNone : parseSandboxPolicy(value, invalidTokens));
         if (!invalidTokens.isNull())
             document().addConsoleMessage(OtherMessageSource, ErrorMessageLevel, "Error while parsing the 'sandbox' attribute: " + invalidTokens);
-    } else if (name == seamlessAttr) {
-        // If we're adding or removing the seamless attribute, we need to force the content document to recalculate its StyleResolver.
-        if (contentDocument())
-            contentDocument()->styleResolverChanged(RecalcStyleDeferred);
-    } else
+    } else {
         HTMLFrameElementBase::parseAttribute(name, value);
+    }
 }
 
 bool HTMLIFrameElement::rendererIsNeeded(const RenderStyle& style)
 {
     return isURLAllowed() && HTMLElement::rendererIsNeeded(style);
 }
 
 RenderObject* HTMLIFrameElement::createRenderer(RenderStyle*)
 {
     return new RenderIFrame(this);
 }
 
 Node::InsertionNotificationRequest HTMLIFrameElement::insertedInto(ContainerNode* insertionPoint)
 {
     InsertionNotificationRequest result = HTMLFrameElementBase::insertedInto(insertionPoint);
     if (insertionPoint->inDocument() && document().isHTMLDocument() && !insertionPoint->isInShadowTree())
         toHTMLDocument(document()).addExtraNamedItem(m_name);
     return result;
 }
 
 void HTMLIFrameElement::removedFrom(ContainerNode* insertionPoint)
 {
     HTMLFrameElementBase::removedFrom(insertionPoint);
     if (insertionPoint->inDocument() && document().isHTMLDocument() && !insertionPoint->isInShadowTree())
         toHTMLDocument(document()).removeExtraNamedItem(m_name);
 }
 
-bool HTMLIFrameElement::shouldDisplaySeamlessly() const
-{
-    return contentDocument() && contentDocument()->shouldDisplaySeamlesslyWithParent();
-}
-
 void HTMLIFrameElement::didRecalcStyle(StyleRecalcChange styleChange)
 {
-    if (!shouldDisplaySeamlessly())
-        return;
-    Document* childDocument = contentDocument();
-    if (shouldRecalcStyle(styleChange, childDocument))
-        contentDocument()->recalcStyle(styleChange);
+    // FIXME: Can we remove this function?
 }
 
 bool HTMLIFrameElement::isInteractiveContent() const
 {
     return true;
 }
 
 }