ServiceWorker: Implement navigate() method in WindowClient (chromium side).

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 8d7126bdc47269ced0d4be27218cc3dabc5c8448..6c6a5d84da56da4d0f82ac06e7de5486c7884000 100644
--- a/content/browser/service_worker/service_worker_provider_host.h
+++ b/content/browser/service_worker/service_worker_provider_host.h
@@ -166,6 +166,9 @@ class CONTENT_EXPORT ServiceWorkerProviderHost
   // Runs the |callback| with the updated ServiceWorkerClientInfo in parameter.
   void Focus(const GetClientInfoCallback& callback);
 
+  // Runs the |callback| with the updated ServiceWorkerClientInfo in parameter.
+  void Navigate(const GURL&, const GetClientInfoCallback& callback);
+
   // Asks the renderer to send back the document information.
   void GetWindowClientInfo(const GetClientInfoCallback& callback) const;