Implement SANACLAP (http://bit.ly/sanaclap).

third_party/WebKit/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 1834 matching lines @@
 
         // Ditto.
         if (needsOverflowRecalcAfterStyleChange() && oldStyle->position() != m_style->position())
             markAncestorsForOverflowRecalcIfNeeded();
 
         setNeedsLayoutAndPrefWidthsRecalc(LayoutInvalidationReason::StyleChange);
     } else if (diff.needsPositionedMovementLayout()) {
         setNeedsPositionedMovementLayout();
     }
 
+    if (diff.scrollAnchorDisablingPropertyChanged())
+        setScrollAnchorDisablingStyleChanged(true);
+
     // Don't check for paint invalidation here; we need to wait until the layer has been
     // updated by subclasses before we know if we have to invalidate paints (in setStyle()).
 
     if (oldStyle && !areCursorsEqual(oldStyle, style())) {
         if (LocalFrame* frame = this->frame()) {
             // Cursor update scheduling is done by the local root, which is the main frame if there
             // are no RemoteFrame ancestors in the frame tree. Use of localFrameRoot() is
             // discouraged but will change when cursor update scheduling is moved from EventHandler
             // to PageEventHandler.
             frame->localFrameRoot()->eventHandler().scheduleCursorUpdate();
@@ skipping 1603 matching lines @@
         const blink::LayoutObject* root = object1;
         while (root->parent())
             root = root->parent();
         root->showLayoutTreeAndMark(object1, "*", object2, "-", 0);
     } else {
         WTFLogAlways("%s", "Cannot showLayoutTree. Root is (nil)");
     }
 }
 
 #endif