Remove a bunch of dead code from RenderLayer

sky/engine/core/rendering/RenderObject.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 1189 matching lines @@
         current->addAbsoluteRectForLayer(result);
     return result;
 }
 
 void RenderObject::paint(PaintInfo&, const LayoutPoint&)
 {
 }
 
 const RenderLayerModelObject* RenderObject::containerForPaintInvalidation() const
 {
-    if (!isRooted())
-        return 0;
-
-    return adjustCompositedContainerForSpecialAncestors(enclosingCompositedContainer());
-}
-
-const RenderLayerModelObject* RenderObject::enclosingCompositedContainer() const
-{
-    RenderLayerModelObject* container = 0;
-    if (RenderLayer* compositingLayer = enclosingLayer()->enclosingLayerForPaintInvalidationCrossingFrameBoundaries())
-        container = compositingLayer->renderer();
-    return container;
+    return isRooted() ? view() : 0;
 }
 
 const RenderLayerModelObject* RenderObject::adjustCompositedContainerForSpecialAncestors(const RenderLayerModelObject* paintInvalidationContainer) const
 {
+    // FIXME(sky): We shouldn't have any special ancestors and we don't have composited containers
     if (paintInvalidationContainer)
         return paintInvalidationContainer;
-
-    RenderView* renderView = view();
-    return renderView;
-}
-
-bool RenderObject::isPaintInvalidationContainer() const
-{
-    return hasLayer() && toRenderLayerModelObject(this)->layer()->isPaintInvalidationContainer();
+    return view();
 }
 
 template <typename T>
 void addJsonObjectForRect(TracedValue* value, const char* name, const T& rect)
 {
     value->beginDictionary(name);
     value->setDouble("x", rect.x());
     value->setDouble("y", rect.y());
     value->setDouble("width", rect.width());
     value->setDouble("height", rect.height());
@@ skipping 1343 matching lines @@
 {
     if (object1) {
         const blink::RenderObject* root = object1;
         while (root->parent())
             root = root->parent();
         root->showRenderTreeAndMark(object1, "*", object2, "-", 0);
     }
 }
 
 #endif