Allow Blink to respond asynchronously to SW Push events (side 1/3)

content/renderer/service_worker/embedded_worker_context_client.h

Index: content/renderer/service_worker/embedded_worker_context_client.h
diff --git a/content/renderer/service_worker/embedded_worker_context_client.h b/content/renderer/service_worker/embedded_worker_context_client.h
index bc92a341b5d3ead117fe6bdb78d44707a84651fc..b8e02505ced0724caf2126ab2a875526efee77b8 100644
--- a/content/renderer/service_worker/embedded_worker_context_client.h
+++ b/content/renderer/service_worker/embedded_worker_context_client.h
@@ -91,6 +91,8 @@ class EmbeddedWorkerContextClient
   virtual void didHandleFetchEvent(
       int request_id,
       const blink::WebServiceWorkerResponse& response);
+  virtual void didHandlePushEvent(int request_id,
+                                  blink::WebServiceWorkerEventResult result);
   virtual void didHandleSyncEvent(int request_id);
   virtual blink::WebServiceWorkerNetworkProvider*
       createServiceWorkerNetworkProvider(blink::WebDataSource* data_source);