ServiceWorker: Expose registration within ServiceWorkerGlobalScope [1/3]

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 3eb68469121ee6477880cd91f67773af0eca6fec..f077fc4b6b9aa79bf9371fcc5e1414c86093d3e8 100644
--- a/Source/modules/serviceworkers/ServiceWorkerGlobalScope.h
+++ b/Source/modules/serviceworkers/ServiceWorkerGlobalScope.h
@@ -45,8 +45,10 @@ class Request;
 class ScriptPromise;
 class ScriptState;
 class ServiceWorkerClients;
+class ServiceWorkerRegistration;
 class ServiceWorkerThread;
 class WaitUntilObserver;
+class WebServiceWorkerRegistration;
 class WorkerThreadStartupData;
 
 typedef RequestOrUSVString RequestInfo;
@@ -64,6 +66,7 @@ public:
 
     // ServiceWorkerGlobalScope.idl
     ServiceWorkerClients* clients();
+    ServiceWorkerRegistration* registration();
 
     CacheStorage* caches(ExecutionContext*);
 
@@ -73,6 +76,8 @@ public:
 
     ScriptPromise skipWaiting(ScriptState*);
 
+    void setRegistration(WebServiceWorkerRegistration*);
+
     // EventTarget
     virtual bool addEventListener(const AtomicString& eventType, PassRefPtr<EventListener>, bool useCapture = false) override;
     virtual const AtomicString& interfaceName() const override;
@@ -96,6 +101,7 @@ private:
     virtual void logExceptionToConsole(const String& errorMessage, int scriptId, const String& sourceURL, int lineNumber, int columnNumber, PassRefPtrWillBeRawPtr<ScriptCallStack>) override;
 
     PersistentWillBeMember<ServiceWorkerClients> m_clients;
+    PersistentWillBeMember<ServiceWorkerRegistration> m_registration;
     PersistentWillBeMember<CacheStorage> m_caches;
     bool m_didEvaluateScript;
     bool m_hadErrorInTopLevelEventHandler;