Replacing 0 with nullptr

Source/core/html/HTMLTextAreaElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2007 Samuel Weinig (sam@webkit.org)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 507 matching lines @@
 
     if (tooShort())
         return locale().validationMessageTooShortText(computeLengthForSubmission(value()), minLength());
 
     return String();
 }
 
 bool HTMLTextAreaElement::valueMissing() const
 {
     // We should not call value() for performance.
-    return willValidate() && valueMissing(0);
+    return willValidate() && valueMissing(nullptr);
 }
 
 bool HTMLTextAreaElement::valueMissing(const String* value) const
 {
     return isRequiredFormControl() && !isDisabledOrReadOnly() && (value ? *value : this->value()).isEmpty();
 }
 
 bool HTMLTextAreaElement::tooLong() const
 {
     // We should not call value() for performance.
-    return willValidate() && tooLong(0, CheckDirtyFlag);
+    return willValidate() && tooLong(nullptr, CheckDirtyFlag);
 }
 
 bool HTMLTextAreaElement::tooShort() const
 {
     // We should not call value() for performance.
-    return willValidate() && tooShort(0, CheckDirtyFlag);
+    return willValidate() && tooShort(nullptr, CheckDirtyFlag);
 }
 
 bool HTMLTextAreaElement::tooLong(const String* value, NeedsToCheckDirtyFlag check) const
 {
     // Return false for the default value or value set by script even if it is
     // longer than maxLength.
     if (check == CheckDirtyFlag && !lastChangeWasUserEdit())
         return false;
 
     int max = maxLength();
@@ skipping 70 matching lines @@
 {
     return true;
 }
 
 bool HTMLTextAreaElement::supportsAutofocus() const
 {
     return true;
 }
 
 }