[Background Sync] Add sync registration details to onsync event

public/web/WebServiceWorkerContextProxy.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 24 matching lines @@
 #include "public/platform/WebMessagePortChannel.h"
 
 namespace blink {
 
 struct WebCircularGeofencingRegion;
 struct WebCrossOriginServiceWorkerClient;
 struct WebNotificationData;
 class WebServiceWorkerRegistration;
 class WebServiceWorkerRequest;
 class WebString;
+struct WebSyncRegistration;
 
 // A proxy interface to talk to the worker's GlobalScope implementation.
 // All methods of this class must be called on the worker thread.
 class WebServiceWorkerContextProxy {
 public:
     virtual ~WebServiceWorkerContextProxy() { }
 
     virtual void setRegistration(WebServiceWorkerRegistration*) = 0;
     virtual void dispatchActivateEvent(int eventID) = 0;
     // FIXME: This needs to pass the active service worker info.
     virtual void dispatchInstallEvent(int installEventID) = 0;
     virtual void dispatchFetchEvent(int fetchEventID, const WebServiceWorkerRequest& webRequest) = 0;
 
     virtual void dispatchGeofencingEvent(int eventID, WebGeofencingEventType, const WebString& regionID, const WebCircularGeofencingRegion&) = 0;
 
     virtual void dispatchMessageEvent(const WebString& message, const WebMessagePortChannelArray& channels) = 0;
 
     virtual void dispatchNotificationClickEvent(int eventID, int64_t notificationID, const WebNotificationData&) = 0;
 
     virtual void dispatchPushEvent(int eventID, const WebString& data) = 0;
 
     virtual void dispatchCrossOriginConnectEvent(int eventID, const WebCrossOriginServiceWorkerClient&) = 0;
 
     virtual void dispatchCrossOriginMessageEvent(const WebCrossOriginServiceWorkerClient&, const WebString& message, const WebMessagePortChannelArray&) = 0;
 
-    // Once the ServiceWorker has finished handling the sync event
+    // Once the ServiceWorker has finished handling the sync event,
     // didHandleSyncEvent is called on the context client.
+    // FIXME: Remove the single-parameter version once all call sites have been
+    // updated.
     virtual void dispatchSyncEvent(int syncEventID) = 0;
+    virtual void dispatchSyncEvent(int syncEventID, const WebSyncRegistration&) = 0;
 
     virtual void addStashedMessagePorts(const WebMessagePortChannelArray& channels, const WebVector<WebString>& channelNames) = 0;
 };
 
 } // namespace blink
 
 #endif // WebServiceWorkerContextProxy_h