Literal AtomicString construction can rely on strlen optimization.

third_party/WebKit/Source/core/html/HTMLTextAreaElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2007 Samuel Weinig (sam@webkit.org)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 84 matching lines @@
     return textArea.release();
 }
 
 void HTMLTextAreaElement::didAddUserAgentShadowRoot(ShadowRoot& root)
 {
     root.appendChild(TextControlInnerEditorElement::create(document()));
 }
 
 const AtomicString& HTMLTextAreaElement::formControlType() const
 {
-    DEFINE_STATIC_LOCAL(const AtomicString, textarea, ("textarea", AtomicString::ConstructFromLiteral));
+    DEFINE_STATIC_LOCAL(const AtomicString, textarea, ("textarea"));
     return textarea;
 }
 
 FormControlState HTMLTextAreaElement::saveFormControlState() const
 {
     return m_isDirty ? FormControlState(value()) : FormControlState();
 }
 
 void HTMLTextAreaElement::restoreFormControlState(const FormControlState& state)
 {
@@ skipping 513 matching lines @@
     HTMLElement* placeholder = placeholderElement();
     const AtomicString& placeholderText = fastGetAttribute(placeholderAttr);
     if (placeholderText.isEmpty()) {
         if (placeholder)
             userAgentShadowRoot()->removeChild(placeholder);
         return;
     }
     if (!placeholder) {
         RefPtrWillBeRawPtr<HTMLDivElement> newElement = HTMLDivElement::create(document());
         placeholder = newElement.get();
-        placeholder->setShadowPseudoId(AtomicString("-webkit-input-placeholder", AtomicString::ConstructFromLiteral));
+        placeholder->setShadowPseudoId(AtomicString("-webkit-input-placeholder"));
         placeholder->setAttribute(idAttr, ShadowElementNames::placeholder());
         placeholder->setInlineStyleProperty(CSSPropertyDisplay, isPlaceholderVisible() ? CSSValueBlock : CSSValueNone, true);
         userAgentShadowRoot()->insertBefore(placeholder, innerEditorElement());
     }
     placeholder->setTextContent(placeholderText);
 }
 
 bool HTMLTextAreaElement::isInteractiveContent() const
 {
     return true;
 }
 
 bool HTMLTextAreaElement::supportsAutofocus() const
 {
     return true;
 }
 
 const AtomicString& HTMLTextAreaElement::defaultAutocapitalize() const
 {
-    DEFINE_STATIC_LOCAL(const AtomicString, sentences, ("sentences", AtomicString::ConstructFromLiteral));
+    DEFINE_STATIC_LOCAL(const AtomicString, sentences, ("sentences"));
     return sentences;
 }
 
 void HTMLTextAreaElement::copyNonAttributePropertiesFromElement(const Element& source)
 {
     const HTMLTextAreaElement& sourceElement = static_cast<const HTMLTextAreaElement&>(source);
     setValueCommon(sourceElement.value(), DispatchNoEvent, SetSeletion);
     m_isDirty = sourceElement.m_isDirty;
     HTMLTextFormControlElement::copyNonAttributePropertiesFromElement(source);
 }
 
 } // namespace blink