1 files changed, 9 insertions, 12 deletions
diff --git a/dom/base/CustomElementRegistry.h b/dom/base/CustomElementRegistry.h
index 6184c0ac3..cb7bd67a5 100644
--- a/dom/base/CustomElementRegistry.h
+++ b/dom/base/CustomElementRegistry.h
@@ -25,6 +25,7 @@ struct CustomElementData;
 struct ElementDefinitionOptions;
 struct LifecycleCallbacks;
 class CallbackFunction;
+class CustomElementReaction;
 class Function;
 class Promise;
 
@@ -102,6 +103,13 @@ struct CustomElementData
   int32_t mAssociatedMicroTask;
   // Custom element state as described in the custom element spec.
   State mState;
+  // custom element reaction queue as described in the custom element spec.
+  // There is 1 reaction in reaction queue, when 1) it becomes disconnected,
+  // 2) it’s adopted into a new document, 3) its attributes are changed,
+  // appended, removed, or replaced.
+  // There are 3 reactions in reaction queue when doing upgrade operation,
+  // e.g., create an element, insert a node.
+  AutoTArray<nsAutoPtr<CustomElementReaction>, 3> mReactionQueue;
 
   // Empties the callback queue.
   void RunCallbackQueue();
@@ -190,7 +198,7 @@ public:
   }
 
   // nsWeakPtr is a weak pointer of Element
-  // The element reaction queues are stored in ElementReactionQueueMap.
+  // The element reaction queues are stored in CustomElementData.
   // We need to lookup ElementReactionQueueMap again to get relevant reaction queue.
   // The choice of 1 for the auto size here is based on gut feeling.
   typedef AutoTArray<nsWeakPtr, 1> ElementQueue;
@@ -215,17 +223,6 @@ public:
 private:
   ~CustomElementReactionsStack() {};
 
-  // There is 1 reaction in reaction queue, when 1) it becomes disconnected,
-  // 2) it’s adopted into a new document, 3) its attributes are changed,
-  // appended, removed, or replaced.
-  // There are 3 reactions in reaction queue when doing upgrade operation,
-  // e.g., create an element, insert a node.
-  typedef AutoTArray<nsAutoPtr<CustomElementReaction>, 3> ReactionQueue;
-  typedef nsClassHashtable<nsISupportsHashKey, ReactionQueue>
-    ElementReactionQueueMap;
-
-  ElementReactionQueueMap mElementReactionQueueMap;
-
   // The choice of 8 for the auto size here is based on gut feeling.
   AutoTArray<ElementQueue, 8> mReactionsStack;
   ElementQueue mBackupQueue;