Literal AtomicString construction can rely on strlen optimization.

third_party/WebKit/Source/modules/remoteplayback/RemotePlayback.cpp

 // Copyright 2016 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 "modules/remoteplayback/RemotePlayback.h"
 
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/Document.h"
 #include "core/events/Event.h"
 #include "core/html/HTMLMediaElement.h"
 #include "modules/EventTargetModules.h"
 #include "modules/remoteplayback/RemotePlaybackAvailability.h"
 
 namespace blink {
 
 namespace {
 
 const AtomicString& remotePlaybackStateToString(WebRemotePlaybackState state)
 {
-    DEFINE_STATIC_LOCAL(const AtomicString, connectedValue, ("connected", AtomicString::ConstructFromLiteral));
-    DEFINE_STATIC_LOCAL(const AtomicString, disconnectedValue, ("disconnected", AtomicString::ConstructFromLiteral));
+    DEFINE_STATIC_LOCAL(const AtomicString, connectedValue, ("connected"));
+    DEFINE_STATIC_LOCAL(const AtomicString, disconnectedValue, ("disconnected"));
 
     switch (state) {
     case WebRemotePlaybackState::Connected:
         return connectedValue;
     case WebRemotePlaybackState::Disconnected:
         return disconnectedValue;
     }
 
     ASSERT_NOT_REACHED();
     return disconnectedValue;
@@ skipping 75 matching lines @@
 }
 
 DEFINE_TRACE(RemotePlayback)
 {
     visitor->trace(m_availabilityObjects);
     RefCountedGarbageCollectedEventTargetWithInlineData<RemotePlayback>::trace(visitor);
     DOMWindowProperty::trace(visitor);
 }
 
 } // namespace blink