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

shell/shell_apptest.cc

 // Copyright 2015 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 "base/base_paths.h"
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/path_service.h"
 #include "base/run_loop.h"
@@ skipping 62 matching lines @@
   ~ShellHTTPAppTest() override {}
 
  protected:
   void SetUp() override {
     ShellAppTest::SetUp();
 
     application_impl()->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 = 0;
     http_server_factory_->CreateHttpServer(mojo::GetProxy(&http_server_),
                                            local_address.Pass());
 
@@ skipping 95 matching lines @@
     EXPECT_TRUE(EndsWith(app_url, "/pingable_app.mojo", true));
     EXPECT_EQ(app_url.To<std::string>() + "?foo", connection_url);
     EXPECT_EQ("hello", message);
     base::MessageLoop::current()->Quit();
   };
   pingable->Ping("hello", callback);
   base::RunLoop().Run();
 }
 
 }  // namespace