Ensure clean layout for VisibleSelection::selectionFromContentsOfNode

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 1935 matching lines @@
       // break.  It would probably be safe to move the line break so that we
       // could still avoid the anchor here.
       Position downstream(
           mostForwardCaretPosition(visiblePos.deepEquivalent()));
       if (lineBreakExistsAtVisiblePosition(visiblePos) &&
           downstream.anchorNode()->isDescendantOf(enclosingAnchor))
         return original;
 
       result = Position::inParentAfterNode(*enclosingAnchor);
     }
+
+    document().updateStyleAndLayoutIgnorePendingStylesheets();
+
     // If visually just before an anchor, insert *outside* the anchor unless
     // it's the first VisiblePosition in a paragraph, to match NSTextView.
     if (visiblePos.deepEquivalent() == firstInAnchor.deepEquivalent()) {
       // Make sure anchors are pushed down before avoiding them so that we don't
       // also avoid structural elements like lists and blocks (5142012).
       if (original.anchorNode() != enclosingAnchor &&
           original.anchorNode()->parentNode() != enclosingAnchor) {
         pushAnchorElementDown(enclosingAnchor, editingState);
         if (editingState->isAborted())
           return original;
@@ skipping 48 matching lines @@
   return node;
 }
 
 DEFINE_TRACE(CompositeEditCommand) {
   visitor->trace(m_commands);
   visitor->trace(m_composition);
   EditCommand::trace(visitor);
 }
 
 }  // namespace blink