Revert of Removing TODO for It2Me Confirmation Dialog

remoting/host/it2me/it2me_host.cc

 // Copyright 2013 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 "remoting/host/it2me/it2me_host.h"
 
 #include <cstdint>
 #include <memory>
 #include <string>
 #include <utility>
@@ skipping 500 matching lines @@
                  << ": Domain mismatch.";
       result_callback.Run(ValidationResult::ERROR_INVALID_ACCOUNT);
       return;
     }
   }
 
   // Show a confirmation dialog to the user to allow them to confirm/reject it.
   std::unique_ptr<It2MeConfirmationDialog> confirmation_dialog =
       confirmation_dialog_factory_->Create();
 
+  // TODO(joedow): Remove this once confirmation dialog exists on all platforms.
+  if (!confirmation_dialog) {
+    result_callback.Run(ValidationResult::SUCCESS);
+    return;
+  }
+
   confirmation_dialog_proxy_.reset(new It2MeConfirmationDialogProxy(
       host_context_->ui_task_runner(), std::move(confirmation_dialog)));
 
   confirmation_dialog_proxy_->Show(
       client_username, base::Bind(&It2MeHost::OnConfirmationResult,
                                   base::Unretained(this), result_callback));
 }
 
 void It2MeHost::OnConfirmationResult(
     const protocol::ValidatingAuthenticator::ResultCallback& result_callback,
@@ skipping 24 matching lines @@
   std::unique_ptr<It2MeConfirmationDialogFactory> confirmation_dialog_factory(
       new It2MeConfirmationDialogFactory());
   std::unique_ptr<PolicyWatcher> policy_watcher =
       PolicyWatcher::Create(policy_service, context->file_task_runner());
   return new It2MeHost(std::move(context), std::move(policy_watcher),
                        std::move(confirmation_dialog_factory), observer,
                        xmpp_server_config, directory_bot_jid);
 }
 
 }  // namespace remoting