[Leveldb] Use std::{string,vector} instead of mojo::{String,Array}.

components/leveldb/leveldb_service_impl.h

Index: components/leveldb/leveldb_service_impl.h
diff --git a/components/leveldb/leveldb_service_impl.h b/components/leveldb/leveldb_service_impl.h
index b380f6a123dae9d99fb33f138f404caa484e44db..bf413dbfa5b948f03baea8549965cd5ccf942f9a 100644
--- a/components/leveldb/leveldb_service_impl.h
+++ b/components/leveldb/leveldb_service_impl.h
@@ -20,12 +20,12 @@ class LevelDBServiceImpl : public mojom::LevelDBService {
 
   // Overridden from LevelDBService:
   void Open(filesystem::mojom::DirectoryPtr directory,
-            const mojo::String& dbname,
+            const std::string& dbname,
             leveldb::mojom::LevelDBDatabaseRequest database,
             const OpenCallback& callback) override;
   void OpenWithOptions(leveldb::mojom::OpenOptionsPtr open_options,
                        filesystem::mojom::DirectoryPtr directory,
-                       const mojo::String& dbname,
+                       const std::string& dbname,
                        leveldb::mojom::LevelDBDatabaseRequest database,
                        const OpenCallback& callback) override;
   void OpenInMemory(leveldb::mojom::LevelDBDatabaseRequest database,