Literal AtomicString construction can rely on strlen optimization.

third_party/WebKit/Source/modules/fetch/FetchRequestData.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef FetchRequestData_h
 #define FetchRequestData_h
 
 #include "platform/heap/Handle.h"
 #include "platform/weborigin/KURL.h"
 #include "platform/weborigin/Referrer.h"
@@ skipping 56 matching lines @@
     BodyStreamBuffer* buffer() const { return m_buffer; }
     // Call Request::refreshBody() after calling setBuffer().
     void setBuffer(BodyStreamBuffer* buffer) { m_buffer = buffer; }
     String mimeType() const { return m_mimeType; }
     void setMIMEType(const String& type) { m_mimeType = type; }
     String integrity() const { return m_integrity; }
     void setIntegrity(const String& integrity) { m_integrity = integrity; }
 
     // We use these strings instead of "no-referrer" and "client" in the spec.
     static AtomicString noReferrerString() { return AtomicString(); }
-    static AtomicString clientReferrerString() { return AtomicString("about:client", AtomicString::ConstructFromLiteral); }
+    static AtomicString clientReferrerString() { return AtomicString("about:client"); }
 
     DECLARE_TRACE();
 
 private:
     FetchRequestData();
 
     FetchRequestData* cloneExceptBody();
 
     AtomicString m_method;
     KURL m_url;
@@ skipping 17 matching lines @@
     // FIXME: Support m_redirectCount;
     Tainting m_responseTainting;
     Member<BodyStreamBuffer> m_buffer;
     String m_mimeType;
     String m_integrity;
 };
 
 } // namespace blink
 
 #endif // FetchRequestData_h