Transfer serviceworker state during cross site navigations too.

content/browser/service_worker/service_worker_provider_host.h

Index: content/browser/service_worker/service_worker_provider_host.h
diff --git a/content/browser/service_worker/service_worker_provider_host.h b/content/browser/service_worker/service_worker_provider_host.h
index 04fb21d0a2ba249c87600c0aa371ed9994f89ff2..de73f681e95caadb89565f0c604dda2e7afafff8 100644
--- a/content/browser/service_worker/service_worker_provider_host.h
+++ b/content/browser/service_worker/service_worker_provider_host.h
@@ -131,6 +131,16 @@ class CONTENT_EXPORT ServiceWorkerProviderHost
   // be removed in destructor.
   void AddScopedProcessReferenceToPattern(const GURL& pattern);
 
+  // Methods to support cross site navigations.
+  void PrepareForCrossSiteTransfer();
+  void CompleteCrossSiteTransfer(
+      int new_process_id,
+      int new_provider_id,
+      ServiceWorkerDispatcherHost* dispatcher_host);
+  ServiceWorkerDispatcherHost* dispatcher_host() const {
+    return dispatcher_host_;
+  }
+
  private:
   friend class ServiceWorkerProviderHostTest;
   friend class ServiceWorkerWriteToCacheJobTest;
@@ -146,6 +156,8 @@ class CONTENT_EXPORT ServiceWorkerProviderHost
   // clears the field.
   void SetControllerVersionAttribute(ServiceWorkerVersion* version);
 
+  void SendAssociateRegistrationMessage();
+
   // Creates a ServiceWorkerHandle to retain |version| and returns a
   // ServiceWorkerInfo with the handle ID to pass to the provider. The
   // provider is responsible for releasing the handle.
@@ -155,8 +167,8 @@ class CONTENT_EXPORT ServiceWorkerProviderHost
   void IncreaseProcessReference(const GURL& pattern);
   void DecreaseProcessReference(const GURL& pattern);
 
-  const int process_id_;
-  const int provider_id_;
+  int process_id_;
+  int provider_id_;
   GURL document_url_;
   GURL topmost_frame_url_;