Literal AtomicString construction can rely on strlen optimization.

third_party/WebKit/Source/platform/exported/linux/WebFontInfo.cpp

 /*
  * Copyright (C) 2009 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 214 matching lines @@
     USING_FAST_MALLOC(FontSetCache);
 public:
     static FontSetCache& shared()
     {
         DEFINE_STATIC_LOCAL(FontSetCache, cache, ());
         return cache;
     }
 
     WebFallbackFont fallbackFontForCharInLocale(WebUChar32 c, const char* locale)
     {
-        DEFINE_STATIC_LOCAL(AtomicString, noLocale, ("NO_LOCALE_SPECIFIED", AtomicString::ConstructFromLiteral));
+        DEFINE_STATIC_LOCAL(AtomicString, noLocale, ("NO_LOCALE_SPECIFIED"));
         AtomicString localeKey;
         if (locale && strlen(locale)) {
             localeKey = AtomicString(locale);
         } else {
             // String hash computation the m_setsByLocale map needs
             // a non-empty string.
             localeKey = noLocale;
         }
 
         LocaleToCachedFont::iterator itr = m_setsByLocale.find(localeKey);
@@ skipping 14 matching lines @@
     typedef HashMap<AtomicString, OwnPtr<CachedFontSet>> LocaleToCachedFont;
     LocaleToCachedFont m_setsByLocale;
 };
 
 void WebFontInfo::fallbackFontForChar(WebUChar32 c, const char* locale, WebFallbackFont* fallbackFont)
 {
     *fallbackFont = FontSetCache::shared().fallbackFontForCharInLocale(c, locale);
 }
 
 } // namespace blink