Rename {Author,UserAgent}ShadowRoot to {Open,Closed}ShadowRoot.

Source/core/html/HTMLKeygenElement.cpp

Index: Source/core/html/HTMLKeygenElement.cpp
diff --git a/Source/core/html/HTMLKeygenElement.cpp b/Source/core/html/HTMLKeygenElement.cpp
index fa7a2cf765cbe086cf98a24bfe3799128d9995af..fd60c60163468de51563628f59f9cebe114b1bbb 100644
--- a/Source/core/html/HTMLKeygenElement.cpp
+++ b/Source/core/html/HTMLKeygenElement.cpp
@@ -52,11 +52,11 @@ HTMLKeygenElement::HTMLKeygenElement(Document& document, HTMLFormElement* form)
 PassRefPtrWillBeRawPtr<HTMLKeygenElement> HTMLKeygenElement::create(Document& document, HTMLFormElement* form)
 {
     RefPtrWillBeRawPtr<HTMLKeygenElement> keygen = adoptRefWillBeNoop(new HTMLKeygenElement(document, form));
-    keygen->ensureUserAgentShadowRoot();
+    keygen->ensureClosedShadowRoot();
     return keygen.release();
 }
 
-void HTMLKeygenElement::didAddUserAgentShadowRoot(ShadowRoot& root)
+void HTMLKeygenElement::didAddClosedShadowRoot(ShadowRoot& root)
 {
     DEFINE_STATIC_LOCAL(AtomicString, keygenSelectPseudoId, ("-webkit-keygen-select", AtomicString::ConstructFromLiteral));
 
@@ -112,7 +112,7 @@ void HTMLKeygenElement::resetImpl()
 
 HTMLSelectElement* HTMLKeygenElement::shadowSelect() const
 {
-    ShadowRoot* root = userAgentShadowRoot();
+    ShadowRoot* root = closedShadowRoot();
     return root ? toHTMLSelectElement(root->firstChild()) : 0;
 }