Literal AtomicString construction can rely on strlen optimization.

third_party/WebKit/Source/core/animation/css/CSSAnimationData.cpp

 // 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.
 
 #include "core/animation/css/CSSAnimationData.h"
 
 #include "core/animation/Timing.h"
 
 namespace blink {
 
@@ skipping 11 matching lines @@
     , m_nameList(other.m_nameList)
     , m_iterationCountList(other.m_iterationCountList)
     , m_directionList(other.m_directionList)
     , m_fillModeList(other.m_fillModeList)
     , m_playStateList(other.m_playStateList)
 {
 }
 
 const AtomicString& CSSAnimationData::initialName()
 {
-    DEFINE_STATIC_LOCAL(const AtomicString, name, ("none", AtomicString::ConstructFromLiteral));
+    DEFINE_STATIC_LOCAL(const AtomicString, name, ("none"));
     return name;
 }
 
 bool CSSAnimationData::animationsMatchForStyleRecalc(const CSSAnimationData& other) const
 {
     return m_nameList == other.m_nameList && m_playStateList == other.m_playStateList
         && m_iterationCountList == other.m_iterationCountList
         && m_directionList == other.m_directionList
         && m_fillModeList == other.m_fillModeList
         && delayList() == other.delayList()
         && durationList() == other.durationList();
 }
 
 Timing CSSAnimationData::convertToTiming(size_t index) const
 {
     ASSERT(index < m_nameList.size());
     Timing timing = CSSTimingData::convertToTiming(index);
 
     timing.iterationCount = getRepeated(m_iterationCountList, index);
     timing.direction = getRepeated(m_directionList, index);
     timing.fillMode = getRepeated(m_fillModeList, index);
     timing.assertValid();
     return timing;
 }
 
 } // namespace blink