Refactor the API for setting dynamic resource load priorities

Source/core/layout/LayoutObject.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 19 matching lines @@
 #include "core/HTMLNames.h"
 #include "core/css/resolver/StyleResolver.h"
 #include "core/dom/AXObjectCache.h"
 #include "core/dom/ElementTraversal.h"
 #include "core/dom/StyleEngine.h"
 #include "core/dom/shadow/ShadowRoot.h"
 #include "core/editing/EditingBoundary.h"
 #include "core/editing/EditingUtilities.h"
 #include "core/editing/FrameSelection.h"
 #include "core/editing/TextAffinity.h"
-#include "core/fetch/ResourceLoadPriorityOptimizer.h"
 #include "core/fetch/ResourceLoader.h"
 #include "core/frame/DeprecatedScheduleStyleRecalcDuringLayout.h"
 #include "core/frame/EventHandlerRegistry.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
 #include "core/frame/UseCounter.h"
 #include "core/html/HTMLAnchorElement.h"
 #include "core/html/HTMLElement.h"
 #include "core/html/HTMLHtmlElement.h"
@@ skipping 2421 matching lines @@
         }
 
         if (StyleImage* borderImage = m_style->borderImage().image())
             borderImage->removeClient(this);
 
         if (StyleImage* maskBoxImage = m_style->maskBoxImage().image())
             maskBoxImage->removeClient(this);
 
         removeShapeImageClient(m_style->shapeOutside());
     }
-    ResourceLoadPriorityOptimizer::resourceLoadPriorityOptimizer()->removeLayoutObject(this);
 
     if (frameView())
         setIsSlowRepaintObject(false);
 }
 
 void LayoutObject::insertedIntoTree()
 {
     // FIXME: We should ASSERT(isRooted()) here but generated content makes some out-of-order insertion.
 
     // Keep our layer hierarchy updated. Optimize for the common case where we don't have any children
@@ skipping 912 matching lines @@
         const blink::LayoutObject* root = object1;
         while (root->parent())
             root = root->parent();
         root->showLayoutTreeAndMark(object1, "*", object2, "-", 0);
     } else {
         fprintf(stderr, "Cannot showLayoutTree. Root is (nil)\n");
     }
 }
 
 #endif