Update SupportsUserData uses with unique_ptr.

content/browser/loader/resource_dispatcher_host_impl.cc

Index: content/browser/loader/resource_dispatcher_host_impl.cc
diff --git a/content/browser/loader/resource_dispatcher_host_impl.cc b/content/browser/loader/resource_dispatcher_host_impl.cc
index 4a9724ec16cd5771bbf2add1558c8f68eb532f35..c5c13a034229bb9c7272aefd40ba94f62f1d4738 100644
--- a/content/browser/loader/resource_dispatcher_host_impl.cc
+++ b/content/browser/loader/resource_dispatcher_host_impl.cc
@@ -1239,7 +1239,7 @@ void ResourceDispatcherHostImpl::ContinuePendingBeginRequest(
 
   if (request_data.originated_from_service_worker) {
     new_request->SetUserData(URLRequestServiceWorkerData::kUserDataKey,
-                             new URLRequestServiceWorkerData());
+                             base::MakeUnique<URLRequestServiceWorkerData>());
   }
 
   // If the request is a MAIN_FRAME request, the first-party URL gets updated on