Remove ContextLifecycleObserver from PaymentAppManager

third_party/WebKit/Source/modules/payments/PaymentAppManager.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 PaymentAppManager_h
 #define PaymentAppManager_h
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "components/payments/payment_app.mojom-blink.h"
-#include "core/dom/ContextLifecycleObserver.h"
 #include "modules/ModulesExport.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
-class ExecutionContext;
 class PaymentAppManifest;
 class ScriptPromiseResolver;
 class ScriptState;
 class ServiceWorkerRegistration;
 
 class MODULES_EXPORT PaymentAppManager final
     : public GarbageCollectedFinalized<PaymentAppManager>,
-      public ScriptWrappable,
-      public ContextLifecycleObserver {
+      public ScriptWrappable {
   DEFINE_WRAPPERTYPEINFO();
-  USING_GARBAGE_COLLECTED_MIXIN(PaymentAppManager);
   WTF_MAKE_NONCOPYABLE(PaymentAppManager);
 
  public:
-  static PaymentAppManager* create(ExecutionContext*,
-                                   ServiceWorkerRegistration*);
-
-  void contextDestroyed() override;
+  static PaymentAppManager* create(ServiceWorkerRegistration*);
 
   ScriptPromise setManifest(ScriptState*, const PaymentAppManifest&);
   ScriptPromise getManifest(ScriptState*);
 
   DECLARE_TRACE();
 
  private:
-  PaymentAppManager(ExecutionContext*, ServiceWorkerRegistration*);
+  explicit PaymentAppManager(ServiceWorkerRegistration*);
 
   void onSetManifest(ScriptPromiseResolver*,
                      payments::mojom::blink::PaymentAppManifestError);
   void onGetManifest(ScriptPromiseResolver*,
                      payments::mojom::blink::PaymentAppManifestPtr,
                      payments::mojom::blink::PaymentAppManifestError);
   void onServiceConnectionError();
 
   Member<ServiceWorkerRegistration> m_registration;
   payments::mojom::blink::PaymentAppManagerPtr m_manager;
 };
 
 }  // namespace blink
 
 #endif  // PaymentAppManager_h