Literal AtomicString construction can rely on strlen optimization.

third_party/WebKit/Source/core/html/HTMLOutputElement.cpp

 /*
  * Copyright (c) 2010 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 39 matching lines @@
 #endif
 }
 
 PassRefPtrWillBeRawPtr<HTMLOutputElement> HTMLOutputElement::create(Document& document, HTMLFormElement* form)
 {
     return adoptRefWillBeNoop(new HTMLOutputElement(document, form));
 }
 
 const AtomicString& HTMLOutputElement::formControlType() const
 {
-    DEFINE_STATIC_LOCAL(const AtomicString, output, ("output", AtomicString::ConstructFromLiteral));
+    DEFINE_STATIC_LOCAL(const AtomicString, output, ("output"));
     return output;
 }
 
 bool HTMLOutputElement::isDisabledFormControl() const
 {
     return false;
 }
 
 bool HTMLOutputElement::supportsFocus() const
 {
@@ skipping 74 matching lines @@
 
 
 DEFINE_TRACE(HTMLOutputElement)
 {
     visitor->trace(m_tokens);
     HTMLFormControlElement::trace(visitor);
     DOMTokenListObserver::trace(visitor);
 }
 
 } // namespace blink