Rewind the DocumentLifecycle when dirtying state

Source/core/testing/Internals.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 1866 matching lines @@
     return document->frame()->trackedRepaintRectsAsText();
 }
 
 PassRefPtrWillBeRawPtr<ClientRectList> Internals::repaintRects(Element* element, ExceptionState& exceptionState) const
 {
     if (!element) {
         exceptionState.throwDOMException(InvalidAccessError, ExceptionMessages::argumentNullOrIncorrectType(1, "Element"));
         return nullptr;
     }
 
+    element->document().frame()->view()->updateLayoutAndStyleForPainting();
+
     if (RenderLayer* layer = getRenderLayerForElement(element, exceptionState)) {
         if (layer->compositingState() == PaintsIntoOwnBacking) {
             OwnPtr<Vector<FloatRect> > rects = layer->collectTrackedRepaintRects();
             ASSERT(rects.get());
             Vector<FloatQuad> quads(rects->size());
             for (size_t i = 0; i < rects->size(); ++i)
                 quads[i] = FloatRect(rects->at(i));
             return ClientRectList::create(quads);
         }
     }
@@ skipping 571 matching lines @@
 String Internals::textSurroundingNode(Node* node, int x, int y, unsigned long maxLength)
 {
     if (!node)
         return String();
     blink::WebPoint point(x, y);
     SurroundingText surroundingText(VisiblePosition(node->renderer()->positionForPoint(static_cast<IntPoint>(point))), maxLength);
     return surroundingText.content();
 }
 
 }