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

Source/core/html/HTMLAudioElement.cpp

Index: Source/core/html/HTMLAudioElement.cpp
diff --git a/Source/core/html/HTMLAudioElement.cpp b/Source/core/html/HTMLAudioElement.cpp
index 6607ab47c103cd41df10c05bcee9e8ff76b21142..829192bb2dffcaf5b1f2871ac2259dbb58e04e4a 100644
--- a/Source/core/html/HTMLAudioElement.cpp
+++ b/Source/core/html/HTMLAudioElement.cpp
@@ -41,7 +41,7 @@ HTMLAudioElement::HTMLAudioElement(Document& document)
 PassRefPtrWillBeRawPtr<HTMLAudioElement> HTMLAudioElement::create(Document& document)
 {
     RefPtrWillBeRawPtr<HTMLAudioElement> audio = adoptRefWillBeNoop(new HTMLAudioElement(document));
-    audio->ensureUserAgentShadowRoot();
+    audio->ensureClosedShadowRoot();
     audio->suspendIfNeeded();
     return audio.release();
 }
@@ -49,7 +49,7 @@ PassRefPtrWillBeRawPtr<HTMLAudioElement> HTMLAudioElement::create(Document& docu
 PassRefPtrWillBeRawPtr<HTMLAudioElement> HTMLAudioElement::createForJSConstructor(Document& document, const AtomicString& src)
 {
     RefPtrWillBeRawPtr<HTMLAudioElement> audio = adoptRefWillBeNoop(new HTMLAudioElement(document));
-    audio->ensureUserAgentShadowRoot();
+    audio->ensureClosedShadowRoot();
     audio->setPreload(AtomicString("auto", AtomicString::ConstructFromLiteral));
     if (!src.isNull())
         audio->setSrc(src);