Literal AtomicString construction can rely on strlen optimization.

third_party/WebKit/Source/web/WebViewImpl.cpp

 /*
  * Copyright (C) 2011, 2012 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 2493 matching lines @@
 
     return WebTextInputTypeNone;
 }
 
 int WebViewImpl::textInputFlags()
 {
     Element* element = focusedElement();
     if (!element)
         return WebTextInputFlagNone;
 
-    DEFINE_STATIC_LOCAL(AtomicString, autocompleteString, ("autocomplete", AtomicString::ConstructFromLiteral));
-    DEFINE_STATIC_LOCAL(AtomicString, autocorrectString, ("autocorrect", AtomicString::ConstructFromLiteral));
+    DEFINE_STATIC_LOCAL(AtomicString, autocompleteString, ("autocomplete"));
+    DEFINE_STATIC_LOCAL(AtomicString, autocorrectString, ("autocorrect"));
     int flags = 0;
 
     const AtomicString& autocomplete = element->getAttribute(autocompleteString);
     if (autocomplete == "on")
         flags |= WebTextInputFlagAutocompleteOn;
     else if (autocomplete == "off")
         flags |= WebTextInputFlagAutocompleteOff;
 
     const AtomicString& autocorrect = element->getAttribute(autocorrectString);
     if (autocorrect == "on")
         flags |= WebTextInputFlagAutocorrectOn;
     else if (autocorrect == "off")
         flags |= WebTextInputFlagAutocorrectOff;
 
     SpellcheckAttributeState spellcheck = element->spellcheckAttributeState();
     if (spellcheck == SpellcheckAttributeTrue)
         flags |= WebTextInputFlagSpellcheckOn;
     else if (spellcheck == SpellcheckAttributeFalse)
         flags |= WebTextInputFlagSpellcheckOff;
 
     if (isHTMLTextFormControlElement(element)) {
         HTMLTextFormControlElement* formElement = static_cast<HTMLTextFormControlElement*>(element);
         if (formElement->supportsAutocapitalize()) {
-            DEFINE_STATIC_LOCAL(const AtomicString, none, ("none", AtomicString::ConstructFromLiteral));
-            DEFINE_STATIC_LOCAL(const AtomicString, characters, ("characters", AtomicString::ConstructFromLiteral));
-            DEFINE_STATIC_LOCAL(const AtomicString, words, ("words", AtomicString::ConstructFromLiteral));
-            DEFINE_STATIC_LOCAL(const AtomicString, sentences, ("sentences", AtomicString::ConstructFromLiteral));
+            DEFINE_STATIC_LOCAL(const AtomicString, none, ("none"));
+            DEFINE_STATIC_LOCAL(const AtomicString, characters, ("characters"));
+            DEFINE_STATIC_LOCAL(const AtomicString, words, ("words"));
+            DEFINE_STATIC_LOCAL(const AtomicString, sentences, ("sentences"));
 
             const AtomicString& autocapitalize = formElement->autocapitalize();
             if (autocapitalize == none)
                 flags |= WebTextInputFlagAutocapitalizeNone;
             else if (autocapitalize == characters)
                 flags |= WebTextInputFlagAutocapitalizeCharacters;
             else if (autocapitalize == words)
                 flags |= WebTextInputFlagAutocapitalizeWords;
             else if (autocapitalize == sentences)
                 flags |= WebTextInputFlagAutocapitalizeSentences;
@@ skipping 2011 matching lines @@
 {
     // TODO(oshima): Investigate if this should return the ScreenInfo's scale factor rather than
     // page's scale factor, which can be 1 in use-zoom-for-dsf mode.
     if (!page())
         return 1;
 
     return page()->deviceScaleFactor();
 }
 
 } // namespace blink