Audit the use of updateStyleAndLayoutIgnorePendingStylesheets in inSameLine

third_party/WebKit/Source/core/editing/VisibleUnits.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 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 1223 matching lines @@
 {
     return logicalEndOfLineAlgorithm<EditingInFlatTreeStrategy>(currentPosition);
 }
 
 template <typename Strategy>
 bool inSameLineAlgorithm(const PositionWithAffinityTemplate<Strategy>& position1, const PositionWithAffinityTemplate<Strategy>& position2)
 {
     if (position1.isNull() || position2.isNull())
         return false;
     DCHECK_EQ(position1.position().document(), position2.position().document());
-
-    // TODO(xiaochengh): The use of updateStyleAndLayoutIgnorePendingStylesheets
-    // needs to be audited.  See http://crbug.com/590369 for more details.
-    position1.position().document()->updateStyleAndLayoutIgnorePendingStylesheets();
+    DCHECK(!position1.position().document()->needsLayoutTreeUpdate());
 
     PositionWithAffinityTemplate<Strategy> startOfLine1 = startOfLine(position1);
     PositionWithAffinityTemplate<Strategy> startOfLine2 = startOfLine(position2);
     if (startOfLine1 == startOfLine2)
         return true;
     PositionTemplate<Strategy> canonicalized1 = canonicalPositionOf(startOfLine1.position());
     if (canonicalized1 == startOfLine2.position())
         return true;
     return canonicalized1 == canonicalPositionOf(startOfLine2.position());
 }
@@ skipping 2064 matching lines @@
 {
     return previousPositionOfAlgorithm<EditingStrategy>(visiblePosition, rule);
 }
 
 VisiblePositionInFlatTree previousPositionOf(const VisiblePositionInFlatTree& visiblePosition, EditingBoundaryCrossingRule rule)
 {
     return previousPositionOfAlgorithm<EditingInFlatTreeStrategy>(visiblePosition, rule);
 }
 
 } // namespace blink