PlzNavigate: detect when a ServiceWorker is present

content/common/navigation_params.h

Index: content/common/navigation_params.h
diff --git a/content/common/navigation_params.h b/content/common/navigation_params.h
index 82e5191832e305078f0942882cd60c11a2d18a23..f08c8bb393d6c9866754331c2858f41716345cb6 100644
--- a/content/common/navigation_params.h
+++ b/content/common/navigation_params.h
@@ -298,13 +298,6 @@ struct CONTENT_EXPORT RequestNavigationParams {
   // Whether a ServiceWorkerProviderHost should be created for the window.
   bool should_create_service_worker;
 
-  // PlzNavigate
-  // The ServiceWorkerProviderHost ID used for navigations, if it was already
-  // created by the browser. Set to kInvalidServiceWorkerProviderId otherwise.
-  // This parameter is not used in the current navigation architecture, where
-  // it will always be equal to kInvalidServiceWorkerProviderId.
-  int service_worker_provider_id;
-
 #if defined(OS_ANDROID)
   // The real content of the data: URL. Only used in Android WebView for
   // implementing LoadDataWithBaseUrl API method to circumvent the restriction