Literal AtomicString construction can rely on strlen optimization.

third_party/WebKit/Source/core/html/shadow/TextControlInnerElements.cpp

 /*
  * Copyright (C) 2006, 2008, 2010 Apple Inc. All rights reserved.
  * 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:
  * 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 148 matching lines @@
 
 PassRefPtrWillBeRawPtr<SearchFieldDecorationElement> SearchFieldDecorationElement::create(Document& document)
 {
     RefPtrWillBeRawPtr<SearchFieldDecorationElement> element = adoptRefWillBeNoop(new SearchFieldDecorationElement(document));
     element->setAttribute(idAttr, ShadowElementNames::searchDecoration());
     return element.release();
 }
 
 const AtomicString& SearchFieldDecorationElement::shadowPseudoId() const
 {
-    DEFINE_STATIC_LOCAL(AtomicString, resultsDecorationId, ("-webkit-search-results-decoration", AtomicString::ConstructFromLiteral));
-    DEFINE_STATIC_LOCAL(AtomicString, decorationId, ("-webkit-search-decoration", AtomicString::ConstructFromLiteral));
+    DEFINE_STATIC_LOCAL(AtomicString, resultsDecorationId, ("-webkit-search-results-decoration"));
+    DEFINE_STATIC_LOCAL(AtomicString, decorationId, ("-webkit-search-decoration"));
     Element* host = shadowHost();
     if (!host)
         return resultsDecorationId;
     if (isHTMLInputElement(*host)) {
         if (toHTMLInputElement(host)->maxResults() < 0)
             return decorationId;
         return resultsDecorationId;
     }
     return resultsDecorationId;
 }
@@ skipping 21 matching lines @@
 
 inline SearchFieldCancelButtonElement::SearchFieldCancelButtonElement(Document& document)
     : HTMLDivElement(document)
     , m_capturing(false)
 {
 }
 
 PassRefPtrWillBeRawPtr<SearchFieldCancelButtonElement> SearchFieldCancelButtonElement::create(Document& document)
 {
     RefPtrWillBeRawPtr<SearchFieldCancelButtonElement> element = adoptRefWillBeNoop(new SearchFieldCancelButtonElement(document));
-    element->setShadowPseudoId(AtomicString("-webkit-search-cancel-button", AtomicString::ConstructFromLiteral));
+    element->setShadowPseudoId(AtomicString("-webkit-search-cancel-button"));
     element->setAttribute(idAttr, ShadowElementNames::clearButton());
     return element.release();
 }
 
 void SearchFieldCancelButtonElement::detach(const AttachContext& context)
 {
     if (m_capturing) {
         if (LocalFrame* frame = document().frame())
             frame->eventHandler().setCapturingMouseEventsNode(nullptr);
     }
@@ skipping 26 matching lines @@
 bool SearchFieldCancelButtonElement::willRespondToMouseClickEvents()
 {
     const HTMLInputElement* input = toHTMLInputElement(shadowHost());
     if (input && !input->isDisabledOrReadOnly())
         return true;
 
     return HTMLDivElement::willRespondToMouseClickEvents();
 }
 
 } // namespace blink