Remove unnecessary layout updates from InsertInto/DeleteFromTextNodeCommand

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 672 matching lines @@
 void CompositeEditCommand::setNodeAttribute(Element* element,
                                             const QualifiedName& attribute,
                                             const AtomicString& value) {
   // SetNodeAttributeCommand is never aborted.
   applyCommandToComposite(
       SetNodeAttributeCommand::create(element, attribute, value),
       ASSERT_NO_EDITING_ABORT);
 }
 
 bool CompositeEditCommand::canRebalance(const Position& position) const {
+  // TODO(editing-dev): Use of updateStyleAndLayoutIgnorePendingStylesheets()
+  // needs to be audited.  See http://crbug.com/590369 for more details.
+  document().updateStyleAndLayoutIgnorePendingStylesheets();
+
   Node* node = position.computeContainerNode();
   if (!position.isOffsetInAnchor() || !node || !node->isTextNode() ||
       !hasRichlyEditableStyle(*node))
     return false;
 
   Text* textNode = toText(node);
   if (textNode->length() == 0)
     return false;
 
   LayoutText* layoutText = textNode->layoutObject();
@@ skipping 1269 matching lines @@
 
 DEFINE_TRACE(CompositeEditCommand) {
   visitor->trace(m_commands);
   visitor->trace(m_startingSelection);
   visitor->trace(m_endingSelection);
   visitor->trace(m_undoStep);
   EditCommand::trace(visitor);
 }
 
 }  // namespace blink