Literal AtomicString construction can rely on strlen optimization.

third_party/WebKit/Source/core/fetch/XSLStyleSheetResource.cpp

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller (mueller@kde.org)
     Copyright (C) 2002 Waldo Bastian (bastian@kde.org)
     Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
     Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
@@ skipping 41 matching lines @@
 {
     ASSERT(RuntimeEnabledFeatures::xsltEnabled());
     request.mutableResourceRequest().setRequestContext(WebURLRequest::RequestContextXSLT);
     return toXSLStyleSheetResource(fetcher->requestResource(request, XSLStyleSheetResourceFactory()));
 }
 
 XSLStyleSheetResource::XSLStyleSheetResource(const ResourceRequest& resourceRequest, const ResourceLoaderOptions& options, const String& charset)
     : StyleSheetResource(resourceRequest, XSLStyleSheet, options, "text/xsl", charset)
 {
     ASSERT(RuntimeEnabledFeatures::xsltEnabled());
-    DEFINE_STATIC_LOCAL(const AtomicString, acceptXSLT, ("text/xml, application/xml, application/xhtml+xml, text/xsl, application/rss+xml, application/atom+xml", AtomicString::ConstructFromLiteral));
+    DEFINE_STATIC_LOCAL(const AtomicString, acceptXSLT, ("text/xml, application/xml, application/xhtml+xml, text/xsl, application/rss+xml, application/atom+xml"));
 
     // It's XML we want.
     // FIXME: This should accept more general xml formats */*+xml, image/svg+xml for example.
     setAccept(acceptXSLT);
 }
 
 void XSLStyleSheetResource::didAddClient(ResourceClient* c)
 {
     ASSERT(StyleSheetResourceClient::isExpectedType(c));
     Resource::didAddClient(c);
     if (!isLoading())
         static_cast<StyleSheetResourceClient*>(c)->setXSLStyleSheet(m_resourceRequest.url(), m_response.url(), m_sheet);
 }
 
 void XSLStyleSheetResource::checkNotify()
 {
     if (m_data.get())
         m_sheet = decodedText();
 
     ResourceClientWalker<StyleSheetResourceClient> w(m_clients);
     while (StyleSheetResourceClient* c = w.next())
         c->setXSLStyleSheet(m_resourceRequest.url(), m_response.url(), m_sheet);
 }
 
 } // namespace blink