CustomElements: adopt node

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

Index: third_party/WebKit/Source/core/dom/TreeScopeAdopter.cpp
diff --git a/third_party/WebKit/Source/core/dom/TreeScopeAdopter.cpp b/third_party/WebKit/Source/core/dom/TreeScopeAdopter.cpp
index 210911d2352a160d8bc2de2a072d3791a8a1fdf1..4ecdea2adee23e8f3730d7af5849c0db5fe23549 100644
--- a/third_party/WebKit/Source/core/dom/TreeScopeAdopter.cpp
+++ b/third_party/WebKit/Source/core/dom/TreeScopeAdopter.cpp
@@ -25,8 +25,10 @@
 #include "core/dom/TreeScopeAdopter.h"
 
 #include "core/dom/Attr.h"
+#include "core/dom/Node.h"
 #include "core/dom/NodeRareData.h"
 #include "core/dom/NodeTraversal.h"
+#include "core/dom/custom/CustomElement.h"
 #include "core/dom/shadow/ElementShadow.h"
 #include "core/dom/shadow/ShadowRoot.h"
 
@@ -125,6 +127,12 @@ inline void TreeScopeAdopter::moveNodeToNewDocument(Node& node, Document& oldDoc
 
     oldDocument.moveNodeIteratorsToNewDocument(node, newDocument);
 
+    if (node.isElementNode()) {
+        Element& element = toElement(node);
+        if (element.getCustomElementState() == CustomElementState::Custom)
+            CustomElement::enqueueAdoptedCallback(&element);
+    }
+
     if (node.isShadowRoot())
         toShadowRoot(node).setDocument(newDocument);