Transfer serviceworker state during cross site navigations too.

content/browser/service_worker/service_worker_context_core.h

Index: content/browser/service_worker/service_worker_context_core.h
diff --git a/content/browser/service_worker/service_worker_context_core.h b/content/browser/service_worker/service_worker_context_core.h
index 63522ea3b39ac1b8d1cf152bc06a5eaf01faff71..cf099d66edd2a12eb4ce0e77214f6d55a8d2fff4 100644
--- a/content/browser/service_worker/service_worker_context_core.h
+++ b/content/browser/service_worker/service_worker_context_core.h
@@ -187,6 +187,15 @@ class CONTENT_EXPORT ServiceWorkerContextCore
       net::URLRequestContext* request_context,
       base::WeakPtr<storage::BlobStorageContext> blob_storage_context);
 
+  // Methods to support cross site navigations.
+  scoped_ptr<ServiceWorkerProviderHost> TransferProviderHostOut(
+      int process_id,
+      int provider_id);
+  void TransferProviderHostIn(
+      int new_process_id,
+      int new_host_id,
+      scoped_ptr<ServiceWorkerProviderHost> provider_host);
+
   base::WeakPtr<ServiceWorkerContextCore> AsWeakPtr() {
     return weak_factory_.GetWeakPtr();
   }