Merge 143840

Source/WebCore/dom/ShadowRoot.cpp

Index: Source/WebCore/dom/ShadowRoot.cpp
===================================================================
--- Source/WebCore/dom/ShadowRoot.cpp	(revision 145445)
+++ Source/WebCore/dom/ShadowRoot.cpp	(working copy)
@@ -52,7 +52,7 @@
 };
 
 ShadowRoot::ShadowRoot(Document* document, ShadowRootType type)
-    : DocumentFragment(document, CreateShadowRoot)
+    : DocumentFragment(0, CreateShadowRoot)
     , TreeScope(this, document)
     , m_prev(0)
     , m_next(0)
@@ -63,7 +63,6 @@
     , m_registeredWithParentShadowRoot(false)
 {
     ASSERT(document);
-    setTreeScope(this);
 
 #if PLATFORM(CHROMIUM)
     if (type == ShadowRoot::AuthorShadowRoot) {
@@ -89,6 +88,11 @@
         clearRareData();
 }
 
+void ShadowRoot::dispose()
+{
+    removeDetachedChildren();
+}
+
 PassRefPtr<Node> ShadowRoot::cloneNode(bool, ExceptionCode& ec)
 {
     ec = DATA_CLONE_ERR;