Remove ContextLifecycleObserver from NavigatorServiceWorker

third_party/WebKit/Source/modules/serviceworkers/NavigatorServiceWorker.h

Index: third_party/WebKit/Source/modules/serviceworkers/NavigatorServiceWorker.h
diff --git a/third_party/WebKit/Source/modules/serviceworkers/NavigatorServiceWorker.h b/third_party/WebKit/Source/modules/serviceworkers/NavigatorServiceWorker.h
index c9abaf27672d5166d03663fbfd71e233c95fba38..4bb8eb57abe5c8602286b69f1003b8b720950a03 100644
--- a/third_party/WebKit/Source/modules/serviceworkers/NavigatorServiceWorker.h
+++ b/third_party/WebKit/Source/modules/serviceworkers/NavigatorServiceWorker.h
@@ -5,7 +5,6 @@
 #ifndef NavigatorServiceWorker_h
 #define NavigatorServiceWorker_h
 
-#include "core/dom/ContextLifecycleObserver.h"
 #include "core/frame/Navigator.h"
 #include "modules/ModulesExport.h"
 #include "platform/Supplementable.h"
@@ -20,8 +19,7 @@ class ServiceWorkerContainer;
 
 class MODULES_EXPORT NavigatorServiceWorker final
     : public GarbageCollected<NavigatorServiceWorker>,
-      public Supplement<Navigator>,
-      public ContextLifecycleObserver {
+      public Supplement<Navigator> {
   USING_GARBAGE_COLLECTED_MIXIN(NavigatorServiceWorker);
 
  public:
@@ -34,6 +32,7 @@ class MODULES_EXPORT NavigatorServiceWorker final
   static ServiceWorkerContainer* serviceWorker(ExecutionContext*,
                                                Navigator&,
                                                String& errorMessage);
+  void clearServiceWorker();
 
   DECLARE_VIRTUAL_TRACE();
 
@@ -44,9 +43,6 @@ class MODULES_EXPORT NavigatorServiceWorker final
 
   static const char* supplementName();
 
-  // ContextLifecycleObserver override.
-  void contextDestroyed() override;
-
   Member<ServiceWorkerContainer> m_serviceWorker;
 };