Pass implementation object to supplemental classes by reference

Source/modules/webdatabase/DatabaseClient.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 53 matching lines @@
 }
 
 void DatabaseClient::createInspectorAgentFor(Page* page)
 {
     ASSERT(!m_inspectorAgent);
     OwnPtr<InspectorDatabaseAgent> inspectorAgent = InspectorDatabaseAgent::create();
     m_inspectorAgent = inspectorAgent.get();
     page->inspectorController().registerModuleAgent(inspectorAgent.release());
 }
 
-void provideDatabaseClientTo(Page* page, PassOwnPtr<DatabaseClient> client)
+void provideDatabaseClientTo(Page& page, PassOwnPtr<DatabaseClient> client)
 {
     DatabaseClient* clientPtr = client.get();
-    page->provideSupplement(DatabaseClient::supplementName(), client);
-    clientPtr->createInspectorAgentFor(page);
+    page.provideSupplement(DatabaseClient::supplementName(), client);
+    clientPtr->createInspectorAgentFor(&page);
 }
 
 void provideDatabaseClientToWorker(WorkerClients* workerClients, PassOwnPtr<DatabaseClient> client)
 {
     workerClients->provideSupplement(DatabaseClient::supplementName(), client);
 }
 
 } // namespace WebCore