Mojo C++ bindings: switch mash/init mojom target to use STL types.

mash/init/init.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MASH_INIT_INIT_H_
 #define MASH_INIT_INIT_H_
 
 #include <map>
 #include <memory>
 
@@ skipping 24 matching lines @@
   // service_manager::Service:
   void OnStart(service_manager::ServiceContext* context) override;
   bool OnConnect(const service_manager::ServiceInfo& remote_info,
                  service_manager::InterfaceRegistry* registry) override;
 
   // service_manager::InterfaceFactory<mojom::Login>:
   void Create(const service_manager::Identity& remote_identity,
               mojom::InitRequest request) override;
 
   // mojom::Init:
-  void StartService(const mojo::String& name,
-                    const mojo::String& user_id) override;
-  void StopServicesForUser(const mojo::String& user_id) override;
+  void StartService(const std::string& name,
+                    const std::string& user_id) override;
+  void StopServicesForUser(const std::string& user_id) override;
 
   void UserServiceQuit(const std::string& user_id);
 
   void StartTracing();
   void StartLogin();
 
   service_manager::ServiceContext* context_ = nullptr;
 
   std::unique_ptr<service_manager::Connection> login_connection_;
   mojo::BindingSet<mojom::Init> init_bindings_;
   std::map<std::string, std::unique_ptr<service_manager::Connection>>
       user_services_;
 
   DISALLOW_COPY_AND_ASSIGN(Init);
 };
 
 }  // namespace init
 }  // namespace mash
 
 #endif  // MASH_INIT_INIT_H_