Delete an assortment of unneeded paint invalidation code.

sky/engine/core/rendering/RenderBlock.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. 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 217 matching lines @@
 
     RenderBox::invalidateTreeIfNeeded(paintInvalidationState);
 
     // Take care of positioned objects. This is required as PaintInvalidationState keeps a single clip rect.
     if (TrackedRendererListHashSet* positionedObjects = this->positionedObjects()) {
         TrackedRendererListHashSet::iterator end = positionedObjects->end();
         const RenderLayerModelObject& newPaintInvalidationContainer = *adjustCompositedContainerForSpecialAncestors(&paintInvalidationState.paintInvalidationContainer());
         PaintInvalidationState childPaintInvalidationState(paintInvalidationState, *this, newPaintInvalidationContainer);
         for (TrackedRendererListHashSet::iterator it = positionedObjects->begin(); it != end; ++it) {
             RenderBox* box = *it;
-
-            // One of the renderers we're skipping over here may be the child's paint invalidation container,
-            // so we can't pass our own paint invalidation container along.
-            const RenderLayerModelObject& paintInvalidationContainerForChild = *box->containerForPaintInvalidation();
-
-            // If it's a new paint invalidation container, we won't have properly accumulated the offset into the
-            // PaintInvalidationState.
-            // FIXME: Teach PaintInvalidationState to handle this case. crbug.com/371485
-            if (&paintInvalidationContainerForChild != newPaintInvalidationContainer) {
-                ForceHorriblySlowRectMapping slowRectMapping(&childPaintInvalidationState);
-                PaintInvalidationState disabledPaintInvalidationState(childPaintInvalidationState, *this, paintInvalidationContainerForChild);
-                box->invalidateTreeIfNeeded(disabledPaintInvalidationState);
-                continue;
-            }
-
-            // If the positioned renderer is absolutely positioned and it is inside
-            // a relatively positioned inline element, we need to account for
-            // the inline elements position in PaintInvalidationState.
-            if (box->style()->position() == AbsolutePosition) {
-                RenderObject* container = box->container(&paintInvalidationContainerForChild, 0);
-                if (container->isRelPositioned() && container->isRenderInline()) {
-                    // FIXME: We should be able to use PaintInvalidationState for this.
-                    // Currently, we will place absolutely positioned elements inside
-                    // relatively positioned inline blocks in the wrong location. crbug.com/371485
-                    ForceHorriblySlowRectMapping slowRectMapping(&childPaintInvalidationState);
-                    PaintInvalidationState disabledPaintInvalidationState(childPaintInvalidationState, *this, paintInvalidationContainerForChild);
-                    box->invalidateTreeIfNeeded(disabledPaintInvalidationState);
-                    continue;
-                }
-            }
-
             box->invalidateTreeIfNeeded(childPaintInvalidationState);
         }
     }
 }
 
 void RenderBlock::addChildIgnoringAnonymousColumnBlocks(RenderObject* newChild, RenderObject* beforeChild)
 {
     if (beforeChild && beforeChild->parent() != this) {
         RenderObject* beforeChildContainer = beforeChild->parent();
         ASSERT(beforeChildContainer->parent() == this);
@@ skipping 1759 matching lines @@
 void RenderBlock::showLineTreeAndMark(const InlineBox* markedBox1, const char* markedLabel1, const InlineBox* markedBox2, const char* markedLabel2, const RenderObject* obj) const
 {
     showRenderObject();
     for (const RootInlineBox* root = firstRootBox(); root; root = root->nextRootBox())
         root->showLineTreeAndMark(markedBox1, markedLabel1, markedBox2, markedLabel2, obj, 1);
 }
 
 #endif
 
 } // namespace blink