[DO NOT COMMIT] Random hacks to unblock work on replication.

Source/core/frame/Frame.cpp

Index: Source/core/frame/Frame.cpp
diff --git a/Source/core/frame/Frame.cpp b/Source/core/frame/Frame.cpp
index 52813512bddfb80d0136b76830dcb1c1b229ae0c..b6c43ba338388c588ec383fd8d5e5647424a9fcd 100644
--- a/Source/core/frame/Frame.cpp
+++ b/Source/core/frame/Frame.cpp
@@ -181,7 +181,17 @@ void Frame::detachFromFrameHost()
 bool Frame::isMainFrame() const
 {
     Page* page = this->page();
-    return page && this == page->mainFrame();
+    return (page && this == page->mainFrame()) || isLocalRoot();
+}
+
+bool Frame::isLocalRoot() const {
+  if (isRemoteFrame())
+    return false;
+
+  if (!tree().parent())
+    return true;
+
+  return tree().parent()->isRemoteFrame();
 }
 
 void Frame::disconnectOwnerElement()