Revert r189385 "Remove LifecycleContext" and r189391, r189530, r189456 that block it

Source/modules/serviceworkers/ServiceWorkerGlobalScope.h

Index: Source/modules/serviceworkers/ServiceWorkerGlobalScope.h
diff --git a/Source/modules/serviceworkers/ServiceWorkerGlobalScope.h b/Source/modules/serviceworkers/ServiceWorkerGlobalScope.h
index 48e8cccfaaec78a68a686944b3e3ed04e0599e2d..f077fc4b6b9aa79bf9371fcc5e1414c86093d3e8 100644
--- a/Source/modules/serviceworkers/ServiceWorkerGlobalScope.h
+++ b/Source/modules/serviceworkers/ServiceWorkerGlobalScope.h
@@ -93,10 +93,6 @@ public:
 
     virtual void trace(Visitor*) override;
 
-    // Timeout before a service worker that was given window interaction
-    // permission loses them. The unit is seconds.
-    static const int kWindowInteractionTimeout = 10;
-
 private:
     class SkipWaitingCallback;