Oilpan: turn DOMWindow into a heap supplementable.

Source/core/page/DOMWindowPagePopup.cpp

Index: Source/core/page/DOMWindowPagePopup.cpp
diff --git a/Source/core/page/DOMWindowPagePopup.cpp b/Source/core/page/DOMWindowPagePopup.cpp
index beea8d9c248fcbc94252aca9a8567fc3b3348a04..4c76925765402ff87756a675245b622359cf33dc 100644
--- a/Source/core/page/DOMWindowPagePopup.cpp
+++ b/Source/core/page/DOMWindowPagePopup.cpp
@@ -42,10 +42,7 @@ DOMWindowPagePopup::DOMWindowPagePopup(PagePopupClient* popupClient)
     ASSERT(popupClient);
 }
 
-DOMWindowPagePopup::~DOMWindowPagePopup()
-{
-    m_controller->clearPagePopupClient();
-}
+DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(DOMWindowPagePopup);
 
 const char* DOMWindowPagePopup::supplementName()
 {
@@ -62,12 +59,18 @@ PagePopupController* DOMWindowPagePopup::pagePopupController(DOMWindow& window)
 void DOMWindowPagePopup::install(DOMWindow& window, PagePopupClient* popupClient)
 {
     ASSERT(popupClient);
-    provideTo(window, supplementName(), adoptPtr(new DOMWindowPagePopup(popupClient)));
+    provideTo(window, supplementName(), adoptPtrWillBeNoop(new DOMWindowPagePopup(popupClient)));
 }
 
 void DOMWindowPagePopup::uninstall(DOMWindow& window)
 {
+    pagePopupController(window)->clearPagePopupClient();
     window.removeSupplement(supplementName());
 }
 
+void DOMWindowPagePopup::trace(Visitor* visitor)
+{
+    visitor->trace(m_controller);
+}
+
 }