Remove DOMWindowProperty from PresentationController

third_party/WebKit/Source/modules/presentation/PresentationController.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "modules/presentation/PresentationController.h"
 
+#include "core/dom/Document.h"
 #include "core/frame/LocalFrame.h"
 #include "modules/presentation/PresentationConnection.h"
 #include "public/platform/modules/presentation/WebPresentationClient.h"
 #include "wtf/PtrUtil.h"
 #include <memory>
 
 namespace blink {
 
 PresentationController::PresentationController(LocalFrame& frame,
                                                WebPresentationClient* client)
-    : DOMWindowProperty(&frame), m_client(client) {
+    : ContextLifecycleObserver(frame.document()), m_client(client) {
   if (m_client)
     m_client->setController(this);
 }
 
 PresentationController::~PresentationController() {
   if (m_client)
     m_client->setController(nullptr);
 }
 
 // static
@@ skipping 23 matching lines @@
 }
 
 WebPresentationClient* PresentationController::client() {
   return m_client;
 }
 
 DEFINE_TRACE(PresentationController) {
   visitor->trace(m_presentation);
   visitor->trace(m_connections);
   Supplement<LocalFrame>::trace(visitor);
-  DOMWindowProperty::trace(visitor);
+  ContextLifecycleObserver::trace(visitor);
 }
 
 void PresentationController::didStartDefaultSession(
     WebPresentationConnectionClient* connectionClient) {
   if (!m_presentation || !m_presentation->defaultRequest())
     return;
   PresentationConnection::take(this, WTF::wrapUnique(connectionClient),
                                m_presentation->defaultRequest());
 }
 
@@ skipping 61 matching lines @@
     presentationUrls[0] = url;
 
   m_client->setDefaultPresentationUrls(presentationUrls);
 }
 
 void PresentationController::registerConnection(
     PresentationConnection* connection) {
   m_connections.add(connection);
 }
 
-void PresentationController::frameDestroyed() {
+void PresentationController::contextDestroyed() {
   if (m_client) {
     m_client->setController(nullptr);
     m_client = nullptr;
   }
-  DOMWindowProperty::frameDestroyed();
 }
 
 PresentationConnection* PresentationController::findConnection(
     WebPresentationConnectionClient* connectionClient) {
   for (const auto& connection : m_connections) {
     if (connection->matches(connectionClient))
       return connection.get();
   }
 
   return nullptr;
 }
 
 }  // namespace blink