Oilpan: Notify supplements of Page and LocalFrame destruction.

Source/modules/geolocation/GeolocationController.cpp

Index: Source/modules/geolocation/GeolocationController.cpp
diff --git a/Source/modules/geolocation/GeolocationController.cpp b/Source/modules/geolocation/GeolocationController.cpp
index 335cd6a163e8cc02f579c22f9057dba81d52602f..cb174270ca2b92fd0f61eade3a93316ea63cef29 100644
--- a/Source/modules/geolocation/GeolocationController.cpp
+++ b/Source/modules/geolocation/GeolocationController.cpp
@@ -90,12 +90,19 @@ GeolocationController::~GeolocationController()
         m_client->controllerForTestRemoved(this);
 }
 
+// FIXME: Oilpan: Once GeolocationClient is on-heap m_client should be a strong
+// pointer and |willBeDestroyed| can potentially be removed from Supplement.
 void GeolocationController::willBeDestroyed()
 {
     if (m_client)
         m_client->geolocationDestroyed();
 }
 
+void GeolocationController::persistentHostHasBeenDestroyed()
+{
+    observeContext(0);
+}
+
 PassOwnPtrWillBeRawPtr<GeolocationController> GeolocationController::create(LocalFrame& frame, GeolocationClient* client)
 {
     return adoptPtrWillBeNoop(new GeolocationController(frame, client));