Support multiple displays for PagePopup

Source/core/page/DOMWindowPagePopup.h

Index: Source/core/page/DOMWindowPagePopup.h
diff --git a/Source/core/page/DOMWindowPagePopup.h b/Source/core/page/DOMWindowPagePopup.h
index 4fc796283ad86cbe88192fca6b0f14bfc8f180ea..6ab7684f1def3b78f3436bda3e994243e16e54c5 100644
--- a/Source/core/page/DOMWindowPagePopup.h
+++ b/Source/core/page/DOMWindowPagePopup.h
@@ -38,6 +38,7 @@
 
 namespace blink {
 
+class PagePopup;
 class PagePopupClient;
 class PagePopupController;
 
@@ -45,14 +46,14 @@ class CORE_EXPORT DOMWindowPagePopup final : public NoBaseWillBeGarbageCollected
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(DOMWindowPagePopup);
 public:
     static PagePopupController* pagePopupController(DOMWindow&);
-    static void install(LocalDOMWindow&, PagePopupClient*);
+    static void install(LocalDOMWindow&, PagePopup&, PagePopupClient*);
     static void uninstall(LocalDOMWindow&);
     DECLARE_EMPTY_VIRTUAL_DESTRUCTOR_WILL_BE_REMOVED(DOMWindowPagePopup);
 
     DECLARE_TRACE();
 
 private:
-    explicit DOMWindowPagePopup(PagePopupClient*);
+    DOMWindowPagePopup(PagePopup&, PagePopupClient*);
     static const char* supplementName();
 
     RefPtrWillBeMember<PagePopupController> m_controller;