Audit the use of updateStyleAndLayoutIgnorePendingStylesheets in InputMethodController::setComposit…

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

 /*
  * Copyright (C) 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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
@@ skipping 410 matching lines @@
         frame().document()->markers().addCompositionMarker(ephemeralLineRange.startPosition(), ephemeralLineRange.endPosition(), underline.color, underline.thick, underline.backgroundColor);
     }
 }
 
 void InputMethodController::setCompositionFromExistingText(const Vector<CompositionUnderline>& underlines, unsigned compositionStart, unsigned compositionEnd)
 {
     Element* editable = frame().selection().rootEditableElement();
     if (!editable)
         return;
 
-    // TODO(dglazkov): The use of updateStyleAndLayoutIgnorePendingStylesheets needs to be audited.
-    // see http://crbug.com/590369 for more details.
-    editable->document().updateStyleAndLayoutIgnorePendingStylesheets();
+    DCHECK(!editable->document().needsLayoutTreeUpdate());
 
     const EphemeralRange range = PlainTextRange(compositionStart, compositionEnd).createRange(*editable);
     if (range.isNull())
         return;
 
     const Position start = range.startPosition();
     if (rootEditableElementOf(start) != editable)
         return;
 
     const Position end = range.endPosition();
@@ skipping 136 matching lines @@
     TypingCommand::deleteSelection(*frame().document());
 }
 
 DEFINE_TRACE(InputMethodController)
 {
     visitor->trace(m_frame);
     visitor->trace(m_compositionRange);
 }
 
 } // namespace blink