Add a user id parameter to connections

components/leveldb/leveldb_app.h

Index: components/leveldb/leveldb_app.h
diff --git a/components/leveldb/leveldb_app.h b/components/leveldb/leveldb_app.h
index 7f5157a4f6bc36b6517a904d5d48bed5146685d5..4de6486becee4ab900d47f8dd4782b4cc2ca0c09 100644
--- a/components/leveldb/leveldb_app.h
+++ b/components/leveldb/leveldb_app.h
@@ -23,7 +23,8 @@ class LevelDBApp : public mojo::ShellClient,
   // |ShellClient| override:
   void Initialize(mojo::Shell* shell,
                   const std::string& url,
-                  uint32_t id) override;
+                  uint32_t id,
+                  uint32_t user_id) override;
   bool AcceptConnection(mojo::Connection* connection) override;
 
   // TODO(erg): What do we have to do on shell error?