Backed out 2 changesets (bug 1553705) for causing Bug1562142 . CLOSED TREE

Backed out changeset fbb26a04ec1f (bug 1553705)
Backed out changeset dd6e7c0970d5 (bug 1553705)

dom/html/HTMLFormElement.h

@@ -520,17 +520,6 @@ class HTMLFormElement final : public nsGenericHTMLElement,
    */
   nsresult GetActionURL(nsIURI** aActionURL, Element* aOriginatingElement);
 
-  // Returns a number for this form that is unique within its owner document.
-  // This is used by nsContentUtils::GenerateStateKey to identify form controls
-  // that are inserted into the document by the parser.
-  int32_t GetFormNumberForStateKey();
-
-  /**
-   * Called when we have been cloned and adopted, and the information of the
-   * node has been changed.
-   */
-  void NodeInfoChanged(Document* aOldDoc) override;
-
  protected:
   //
   // Data members
@@ -591,9 +580,6 @@ class HTMLFormElement final : public nsGenericHTMLElement,
    */
   int32_t mInvalidElementsCount;
 
-  // See GetFormNumberForStateKey.
-  int32_t mFormNumber;
-
   /** Whether we are currently processing a submit event or not */
   bool mGeneratingSubmit;
   /** Whether we are currently processing a reset event or not */