patch.diff

patch.diff

diff --git a/third_party/blink/renderer/core/frame/local_dom_window.cc b/third_party/blink/renderer/core/frame/local_dom_window.cc
index 23e8b0820df25..a676b743d0936 100644
--- a/third_party/blink/renderer/core/frame/local_dom_window.cc
+++ b/third_party/blink/renderer/core/frame/local_dom_window.cc
@@ -1768,6 +1768,10 @@ double LocalDOMWindow::scrollY() const {
                                              GetFrame()->LayoutZoomFactor());
 }
 
+double LocalDOMWindow::foobar() {
+  return 2;
+}
+
 DOMViewport* LocalDOMWindow::viewport() {
   return viewport_.Get();
 }
diff --git a/third_party/blink/renderer/core/frame/local_dom_window.h b/third_party/blink/renderer/core/frame/local_dom_window.h
index 6856371c0729b..83b190adab838 100644
--- a/third_party/blink/renderer/core/frame/local_dom_window.h
+++ b/third_party/blink/renderer/core/frame/local_dom_window.h
@@ -284,6 +284,7 @@ class CORE_EXPORT LocalDOMWindow final : public DOMWindow,
   double pageXOffset() const { return scrollX(); }
   double pageYOffset() const { return scrollY(); }
 
+  double foobar();
   DOMViewport* viewport();
   DOMVisualViewport* visualViewport();
 
diff --git a/third_party/blink/renderer/core/frame/window.idl b/third_party/blink/renderer/core/frame/window.idl
index 1e47b0e21da1a..a5cffc99a88ac 100644
--- a/third_party/blink/renderer/core/frame/window.idl
+++ b/third_party/blink/renderer/core/frame/window.idl
@@ -146,9 +146,11 @@
     // https://github.com/WICG/ViewportAPI
     [Replaceable, SameObject] readonly attribute VisualViewport visualViewport;
 
+    [Replaceable, RuntimeEnabled=PageSwapEvent] readonly attribute double foobar;
+
     // Viewport API
     // https://drafts.csswg.org/css-viewport-1/
-    [Replaceable, SameObject, RuntimeEnabled=ViewportSegments] readonly attribute Viewport viewport;
+    //[Replaceable, SameObject, RuntimeEnabled=ViewportSegments] readonly attribute Viewport viewport;
 
     // client
     [HighEntropy=Direct, MeasureAs=WindowScreenX, Replaceable] readonly attribute long screenX;