1 files changed, 18 insertions, 0 deletions
diff --git a/layout/base/PresShell.h b/layout/base/PresShell.h
index 482ace1421..2b43b3c492 100644
--- a/layout/base/PresShell.h
+++ b/layout/base/PresShell.h
@@ -531,6 +531,12 @@ class PresShell final : public nsStubDocumentObserver,
                                 dom::HTMLSlotElement* aOldSlot,
                                 dom::HTMLSlotElement* aNewSlot);
 
+  /**
+   * Handles when a CustomStateSet state is about to be removed or added.
+   */
+  void CustomStatesWillChange(Element& aElement);
+  void CustomStateChanged(Element& aElement, nsAtom* aState);
+
   void PostRecreateFramesFor(Element*);
   void RestyleForAnimation(Element*, RestyleHint);
 
@@ -1604,6 +1610,18 @@ class PresShell final : public nsStubDocumentObserver,
   MOZ_CAN_RUN_SCRIPT nsresult ScrollToAnchor();
 
   /**
+   * Finds text fragments ranes in the document, highlights the ranges and
+   * scrolls to the last text fragment range on the page if
+   * `aScrollToTextFragment` is true.
+   *
+   * @param aScrollToTextFragment If true, scrolls the view to the last text
+   *                              fragment.
+   * @return True if scrolling happened.
+   */
+  MOZ_CAN_RUN_SCRIPT bool HighlightAndGoToTextFragment(
+      bool aScrollToTextFragment);
+
+  /**
    * When scroll anchoring adjusts positions in the root frame during page load,
    * it may move our scroll position in the root frame.
    *