[Background Sync] Allow sync manager access from uncontrolled clients

Source/modules/background_sync/PeriodicSyncManager.h

Index: Source/modules/background_sync/PeriodicSyncManager.h
diff --git a/Source/modules/background_sync/PeriodicSyncManager.h b/Source/modules/background_sync/PeriodicSyncManager.h
index e66d26d7b97515a317ba7e1c2a856ed26906b41f..f00db18497e0b49cdf3077bd86eb29355f15d11a 100644
--- a/Source/modules/background_sync/PeriodicSyncManager.h
+++ b/Source/modules/background_sync/PeriodicSyncManager.h
@@ -11,6 +11,7 @@
 
 namespace blink {
 
+class ExecutionContext;
 class PeriodicSyncRegistrationOptions;
 class ScriptPromise;
 class ScriptState;
@@ -26,8 +27,7 @@ public:
 
     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*);