1 files changed, 15 insertions, 0 deletions
diff --git a/dom/base/nsIContent.h b/dom/base/nsIContent.h
index 25b582abd1..f368497f44 100644
--- a/dom/base/nsIContent.h
+++ b/dom/base/nsIContent.h
@@ -26,6 +26,7 @@ namespace mozilla {
 class EventChainPreVisitor;
 namespace dom {
 class ShadowRoot;
+class HTMLSlotElement;
 } // namespace dom
 namespace widget {
 struct IMEState;
@@ -710,6 +711,20 @@ public:
   virtual nsTArray<nsIContent*> *GetExistingDestInsertionPoints() const = 0;
 
   /**
+   * Gets the assigned slot associated with this content.
+   *
+   * @return The assigned slot element or null.
+   */
+  virtual mozilla::dom::HTMLSlotElement* GetAssignedSlot() const = 0;
+
+  /**
+   * Sets the assigned slot associated with this content.
+   *
+   * @param aSlot The assigned slot.
+   */
+  virtual void SetAssignedSlot(mozilla::dom::HTMLSlotElement* aSlot) = 0;
+
+  /**
    * Gets the insertion parent element of the XBL binding.
    * The insertion parent is our one true parent in the transformed DOM.
    *