1 files changed, 2 insertions, 1 deletions
diff --git a/chromium/third_party/blink/renderer/core/page/scrolling/scrolling_coordinator.h b/chromium/third_party/blink/renderer/core/page/scrolling/scrolling_coordinator.h
index 260822a8a3b..0590be5b439 100644
--- a/chromium/third_party/blink/renderer/core/page/scrolling/scrolling_coordinator.h
+++ b/chromium/third_party/blink/renderer/core/page/scrolling/scrolling_coordinator.h
@@ -65,7 +65,7 @@ class CORE_EXPORT ScrollingCoordinator final
  public:
   explicit ScrollingCoordinator(Page*);
   ~ScrollingCoordinator() override;
-  void Trace(Visitor*);
+  void Trace(Visitor*) const;
 
   // The LocalFrameView argument is optional, nullptr causes the the scrolling
   // animation host and timeline to be owned by the ScrollingCoordinator. When
@@ -137,6 +137,7 @@ class CORE_EXPORT ScrollingCoordinator final
   void DidChangeScrollbarsHidden(CompositorElementId, bool hidden) override;
 
   base::WeakPtr<ScrollingCoordinator> GetWeakPtr() {
+    DCHECK(page_);
     return weak_ptr_factory_.GetWeakPtr();
   }