Audit the use of updateStyleAndLayoutIgnorePendingStylesheets in DocumentMarkerController.

third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.cpp

 /*
  * Copyright (C) 2005, 2006, 2007, 2008 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 564 matching lines @@
         descriptions.append(markerPointer->description());
     }
 }
 
 void CompositeEditCommand::replaceTextInNodePreservingMarkers(Text* node, unsigned offset, unsigned count, const String& replacementText)
 {
     DocumentMarkerController& markerController = document().markers();
     Vector<DocumentMarker::MarkerType> types;
     Vector<String> descriptions;
     copyMarkerTypesAndDescriptions(markerController.markersInRange(EphemeralRange(Position(node, offset), Position(node, offset + count)), DocumentMarker::AllMarkers()), types, descriptions);
+
     replaceTextInNode(node, offset, count, replacementText);
+
+    // Re-adding markers requires a clean tree.
+    document().updateStyleAndLayout();
+
+    DocumentLifecycle::DisallowTransitionScope(document().lifecycle());
     Position startPosition(node, offset);
     Position endPosition(node, offset + replacementText.length());
     DCHECK_EQ(types.size(), descriptions.size());
+
     for (size_t i = 0; i < types.size(); ++i)
         markerController.addMarker(startPosition, endPosition, types[i], descriptions[i]);
 }
 
 Position CompositeEditCommand::positionOutsideTabSpan(const Position& pos)
 {
     if (!isTabHTMLSpanElementTextNode(pos.anchorNode()))
         return pos;
 
     switch (pos.anchorType()) {
@@ skipping 1045 matching lines @@
 }
 
 DEFINE_TRACE(CompositeEditCommand)
 {
     visitor->trace(m_commands);
     visitor->trace(m_composition);
     EditCommand::trace(visitor);
 }
 
 } // namespace blink