Moved IS_EPHEMERAL flag to extension prefs

apps/saved_files_service.cc

Index: apps/saved_files_service.cc
diff --git a/apps/saved_files_service.cc b/apps/saved_files_service.cc
index 9f9c2b53c237641e6738d29eabcb01e1dcb93a7e..f1e12c7f0b837c1cf738445af24b11578033575d 100644
--- a/apps/saved_files_service.cc
+++ b/apps/saved_files_service.cc
@@ -16,6 +16,7 @@
 #include "extensions/browser/extension_host.h"
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/extension_system.h"
+#include "extensions/browser/extension_util.h"
 #include "extensions/common/permissions/api_permission.h"
 #include "extensions/common/permissions/permission_set.h"
 
@@ -260,7 +261,7 @@ const SavedFileEntry* SavedFilesService::GetFileEntry(
 
 void SavedFilesService::ClearQueueIfNoRetainPermission(
     const Extension* extension) {
-  if (extension->is_ephemeral() ||
+  if (extensions::util::IsEphemeralApp(extension->id(), profile_) ||
       !extension->GetActivePermissions()->HasAPIPermission(
           APIPermission::kFileSystemRetainEntries)) {
     ClearQueue(extension);