Revert "Create ServiceWorkerProviderHost before starting worker"

content/common/service_worker/service_worker_types.typemap

Index: content/common/service_worker/service_worker_types.typemap
diff --git a/content/common/service_worker/service_worker_types.typemap b/content/common/service_worker/service_worker_types.typemap
index e1122fb182fd03ffbee1191232b157b78df1964b..be057a4b65fc7dfb82e1a29816c5cc6521fa127a 100644
--- a/content/common/service_worker/service_worker_types.typemap
+++ b/content/common/service_worker/service_worker_types.typemap
@@ -7,15 +7,9 @@ public_headers = [
   "//content/common/service_worker/service_worker_client_info.h",
   "//content/common/service_worker/service_worker_types.h",
 ]
-traits_headers = [
-  "//content/common/service_worker/service_worker_messages.h",
-  "//content/common/service_worker/service_worker_types_struct_traits.h",
-]
+traits_headers =
+    [ "//content/common/service_worker/service_worker_types_struct_traits.h" ]
 sources = [
   "//content/common/service_worker/service_worker_types_struct_traits.cc",
 ]
-type_mappings = [
-  "content.mojom.ServiceWorkerProviderType=::content::ServiceWorkerProviderType",
-  "content.mojom.ServiceWorkerRegistrationObjectInfo=::content::ServiceWorkerRegistrationObjectInfo",
-  "content.mojom.ServiceWorkerVersionAttributes=::content::ServiceWorkerVersionAttributes",
-]
+type_mappings = [ "content.mojom.ServiceWorkerProviderType=::content::ServiceWorkerProviderType" ]