Centralize more querySelector logic behind QuerySelectorCache.

third_party/WebKit/Source/core/dom/Element.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc.
  * All rights reserved.
  *           (C) 2007 Eric Seidel (eric@webkit.org)
  *
@@ skipping 3326 matching lines @@
 PseudoElement* Element::pseudoElement(PseudoId pseudoId) const {
   return hasRareData() ? elementRareData()->pseudoElement(pseudoId) : nullptr;
 }
 
 LayoutObject* Element::pseudoElementLayoutObject(PseudoId pseudoId) const {
   if (PseudoElement* element = pseudoElement(pseudoId))
     return element->layoutObject();
   return nullptr;
 }
 
-bool Element::matches(const String& selectors, ExceptionState& exceptionState) {
+bool Element::matches(const AtomicString& selectors,
+                      ExceptionState& exceptionState) {
   SelectorQuery* selectorQuery = document().selectorQueryCache().add(
-      AtomicString(selectors), document(), exceptionState);
+      selectors, document(), exceptionState);
   if (!selectorQuery)
     return false;
   return selectorQuery->matches(*this);
 }
 
-Element* Element::closest(const String& selectors,
+Element* Element::closest(const AtomicString& selectors,
                           ExceptionState& exceptionState) {
   SelectorQuery* selectorQuery = document().selectorQueryCache().add(
-      AtomicString(selectors), document(), exceptionState);
+      selectors, document(), exceptionState);
   if (!selectorQuery)
     return nullptr;
   return selectorQuery->closest(*this);
 }
 
 DOMTokenList& Element::classList() {
   ElementRareData& rareData = ensureElementRareData();
   if (!rareData.classList())
     rareData.setClassList(ClassList::create(this));
   return *rareData.classList();
@@ skipping 801 matching lines @@
 }
 
 DEFINE_TRACE_WRAPPERS(Element) {
   if (hasRareData()) {
     visitor->traceWrappers(elementRareData());
   }
   ContainerNode::traceWrappers(visitor);
 }
 
 }  // namespace blink