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 6ea5268b104431212a4f3d25fab9302855c1fd02..b37816e5dcf041f9b149078b71c2dec37b3e15f7 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"
 
@@ -128,6 +130,12 @@ inline void TreeScopeAdopter::moveNodeToNewDocument(Node& node, Document& oldDoc
 
     oldDocument.moveNodeIteratorsToNewDocument(node, newDocument);
 
+    if (node.isElementNode()) {

[dominicc (has gone to gerrit), 2016/08/03 07:56:56]

I believe the custom element state bits actually live in NodeFlags? See:

https://cs.chromium.org/chromium/src/third_party/WebKit/Source/core/dom/Node....

I think you can actually call getCustomElementState on Node, and only *then* do
toElement. This may be a tiiiiiiiiny bit faster.

+        Element& element = toElement(node);
+        if (element.getCustomElementState() == CustomElementState::Custom)
+            CustomElement::enqueueAdoptedCallback(&element);
+    }
+
     if (node.isShadowRoot())
         toShadowRoot(node).setDocument(newDocument);