Literal AtomicString construction can rely on strlen optimization.

third_party/WebKit/Source/core/html/track/TextTrackContainer.cpp

 /*
  * Copyright (C) 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2012 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.
@@ skipping 25 matching lines @@
 namespace blink {
 
 TextTrackContainer::TextTrackContainer(Document& document)
     : HTMLDivElement(document)
 {
 }
 
 PassRefPtrWillBeRawPtr<TextTrackContainer> TextTrackContainer::create(Document& document)
 {
     RefPtrWillBeRawPtr<TextTrackContainer> element = adoptRefWillBeNoop(new TextTrackContainer(document));
-    element->setShadowPseudoId(AtomicString("-webkit-media-text-track-container", AtomicString::ConstructFromLiteral));
+    element->setShadowPseudoId(AtomicString("-webkit-media-text-track-container"));
     return element.release();
 }
 
 LayoutObject* TextTrackContainer::createLayoutObject(const ComputedStyle&)
 {
     return new LayoutTextTrackContainer(this);
 }
 
 void TextTrackContainer::updateDisplay(HTMLMediaElement& mediaElement, ExposingControls exposingControls)
 {
@@ skipping 64 matching lines @@
 
         cue->updateDisplay(*this);
         cue->updatePastAndFutureNodes(movieTime);
     }
 
     // 11. Return output.
     // See the note for step 3 for why there is no output to return.
 }
 
 } // namespace blink