[Background Sync] Allow sync manager access from uncontrolled clients

Source/modules/background_sync/PeriodicSyncManager.h

 // Copyright 2015 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 PeriodicSyncManager_h
 #define PeriodicSyncManager_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "platform/heap/Handle.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
+class ExecutionContext;
 class PeriodicSyncRegistrationOptions;
 class ScriptPromise;
 class ScriptState;
 class ServiceWorkerRegistration;
 
 class PeriodicSyncManager final : public GarbageCollected<PeriodicSyncManager> , public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
 public:
     static PeriodicSyncManager* create(ServiceWorkerRegistration* registration)
     {
         return new PeriodicSyncManager(registration);
     }
 
     unsigned long minPossiblePeriod();
 
-    ScriptPromise registerFunction(ScriptState*);
-    ScriptPromise registerFunction(ScriptState*, const PeriodicSyncRegistrationOptions&);
+    ScriptPromise registerFunction(ScriptState*, ExecutionContext*, const PeriodicSyncRegistrationOptions&);
     ScriptPromise getRegistration(ScriptState*, const String&);
     ScriptPromise getRegistrations(ScriptState*);
     ScriptPromise permissionState(ScriptState*);
 
     DECLARE_TRACE();
 
 private:
     explicit PeriodicSyncManager(ServiceWorkerRegistration*);
 
     Member<ServiceWorkerRegistration> m_registration;
 };
 
 } // namespace blink
 
 #endif // PeriodicSyncManager_h