For c++, Generate enum classes instead of enum from mojom.

services/debugger/debugger.cc

 // Copyright 2014 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.
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/debug/profiler.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
@@ skipping 38 matching lines @@
     if (app->args().size() == 3 && app->args()[2] == "--wm") {
       // Connect to window manager only if requested, as the user might want to
       // run the debugger without spawning one.
       app_->ConnectToService("mojo:window_manager", &window_manager_);
     }
     base::StringToUint(app->args()[1], &command_port_);
     http_server::HttpServerFactoryPtr http_server_factory;
     app->ConnectToService("mojo:http_server", &http_server_factory);
 
     mojo::NetAddressPtr local_address(mojo::NetAddress::New());
-    local_address->family = mojo::NET_ADDRESS_FAMILY_IPV4;
+    local_address->family = mojo::NetAddressFamily::IPV4;
     local_address->ipv4 = mojo::NetAddressIPv4::New();
     local_address->ipv4->addr.resize(4);
     local_address->ipv4->addr[0] = 127;
     local_address->ipv4->addr[1] = 0;
     local_address->ipv4->addr[2] = 0;
     local_address->ipv4->addr[3] = 1;
     local_address->ipv4->port = command_port_;
     http_server_factory->CreateHttpServer(GetProxy(&http_server_).Pass(),
                                           local_address.Pass());
 
@@ skipping 145 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(Debugger);
 };
 
 }  // namespace debugger
 
 MojoResult MojoMain(MojoHandle application_request) {
   mojo::ApplicationRunnerChromium runner(new debugger::Debugger);
   runner.set_message_loop_type(base::MessageLoop::TYPE_IO);
   return runner.Run(application_request);
 }