InstalledAppController should use ContextLifecycleObserver instead of DOMWindowProperty

third_party/WebKit/Source/modules/installedapp/InstalledAppController.h

 // Copyright 2016 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.
 
 #ifndef InstalledAppController_h
 #define InstalledAppController_h
 
-#include "core/frame/DOMWindowProperty.h"
+#include "core/dom/ContextLifecycleObserver.h"
 #include "core/frame/LocalFrame.h"
 #include "modules/ModulesExport.h"
 #include "platform/Supplementable.h"
 #include "public/platform/modules/installedapp/WebInstalledAppClient.h"
 
 namespace blink {
 
 class WebSecurityOrigin;
 
 class MODULES_EXPORT InstalledAppController final
     : public GarbageCollectedFinalized<InstalledAppController>,
       public Supplement<LocalFrame>,
-      public DOMWindowProperty {
+      public ContextLifecycleObserver {
   USING_GARBAGE_COLLECTED_MIXIN(InstalledAppController);
   WTF_MAKE_NONCOPYABLE(InstalledAppController);
 
  public:
   virtual ~InstalledAppController();
 
   void getInstalledApps(const WebSecurityOrigin&,
                         std::unique_ptr<AppInstalledCallbacks>);
 
   static void provideTo(LocalFrame&, WebInstalledAppClient*);
   static InstalledAppController* from(LocalFrame&);
   static const char* supplementName();
 
   DECLARE_VIRTUAL_TRACE();
 
  private:
   InstalledAppController(LocalFrame&, WebInstalledAppClient*);
 
-  // Inherited from DOMWindowProperty.
-  void frameDestroyed() override;
+  // Inherited from ContextLifecycleObserver.
+  void contextDestroyed() override;
 
   WebInstalledAppClient* m_client;
 };
 
 }  // namespace blink
 
 #endif  // InstalledAppController_h