Fix resource scheduling on documents with <frameset>.

Source/core/html/HTMLFrameSetElement.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, 2009, 2010 Apple Inc. 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 16 matching lines @@
 #include "CSSPropertyNames.h"
 #include "HTMLNames.h"
 #include "bindings/v8/ScriptEventListener.h"
 #include "core/dom/Document.h"
 #include "core/dom/Event.h"
 #include "core/dom/EventNames.h"
 #include "core/dom/MouseEvent.h"
 #include "core/dom/NodeRenderingContext.h"
 #include "core/html/HTMLCollection.h"
 #include "core/html/HTMLFrameElement.h"
+#include "core/loader/FrameLoaderClient.h"
+#include "core/page/Frame.h"
 #include "core/platform/Length.h"
 #include "core/rendering/RenderFrameSet.h"
 
 namespace WebCore {
 
 using namespace HTMLNames;
 
 HTMLFrameSetElement::HTMLFrameSetElement(const QualifiedName& tagName, Document* document)
     : HTMLElement(tagName, document)
     , m_totalRows(1)
@@ skipping 143 matching lines @@
 {
     if (evt->isMouseEvent() && !m_noresize && renderer() && renderer()->isFrameSet()) {
         if (toRenderFrameSet(renderer())->userResize(static_cast<MouseEvent*>(evt))) {
             evt->setDefaultHandled();
             return;
         }
     }
     HTMLElement::defaultEventHandler(evt);
 }
 
+Node::InsertionNotificationRequest HTMLFrameSetElement::insertedInto(ContainerNode* insertionPoint)
+{
+    if (insertionPoint->inDocument() && document()->frame()) {
+        // A document using <frameset> likely won't literally have a body, but as far as the client is concerned, the frameset is effectively the body.
+        document()->frame()->loader()->client()->dispatchWillInsertBody();
+    }
+    return HTMLElement::insertedInto(insertionPoint);
+}
+
 void HTMLFrameSetElement::willRecalcStyle(StyleChange)
 {
     if (needsStyleRecalc() && renderer()) {
         renderer()->setNeedsLayout(true);
         clearNeedsStyleRecalc();
     }
 }
 
 DOMWindow* HTMLFrameSetElement::anonymousNamedGetter(const AtomicString& name)
 {
     Node* frameNode = children()->namedItem(name);
     if (!frameNode || !frameNode->hasTagName(HTMLNames::frameTag))
         return 0;
     Document* document = static_cast<HTMLFrameElement*>(frameNode)->contentDocument();
     if (!document || !document->frame())
         return 0;
     return document->domWindow();
 }
 
 } // namespace WebCore