MD Settings: Fix networking config errors

extensions/browser/api/networking_private/networking_private_chromeos.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 "extensions/browser/api/networking_private/networking_private_chromeos.h"
 
 #include <memory>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 842 matching lines @@
           EnsureDictionaryValue(::onc::proxy::kManual, proxy_settings);
       SetManualProxy(manual, state, ::onc::proxy::kHttp, config.single_proxy);
       SetManualProxy(manual, state, ::onc::proxy::kHttps, config.single_proxy);
       SetManualProxy(manual, state, ::onc::proxy::kFtp, config.single_proxy);
       SetManualProxy(manual, state, ::onc::proxy::kSocks, config.single_proxy);
       break;
     }
     case UIProxyConfig::MODE_PROXY_PER_SCHEME: {
       base::DictionaryValue* manual =
           EnsureDictionaryValue(::onc::proxy::kManual, proxy_settings);
-      SetManualProxy(manual, state, ::onc::proxy::kHttp, config.http_proxy);
-      SetManualProxy(manual, state, ::onc::proxy::kHttps, config.https_proxy);
-      SetManualProxy(manual, state, ::onc::proxy::kFtp, config.ftp_proxy);
-      SetManualProxy(manual, state, ::onc::proxy::kSocks, config.socks_proxy);
+      if (config.http_proxy.server.is_valid())
+        SetManualProxy(manual, state, ::onc::proxy::kHttp, config.http_proxy);
+      if (config.https_proxy.server.is_valid())
+        SetManualProxy(manual, state, ::onc::proxy::kHttps, config.https_proxy);
+      if (config.ftp_proxy.server.is_valid())
+        SetManualProxy(manual, state, ::onc::proxy::kFtp, config.ftp_proxy);
+      if (config.socks_proxy.server.is_valid())
+        SetManualProxy(manual, state, ::onc::proxy::kSocks, config.socks_proxy);
       break;
     }
     case UIProxyConfig::MODE_PAC_SCRIPT: {
       base::DictionaryValue* pac =
           EnsureDictionaryValue(::onc::proxy::kPAC, proxy_settings);
       SetProxyEffectiveValue(pac, state,
                              base::WrapUnique<base::Value>(new base::Value(
                                  config.automatic_proxy.pac_url.spec())));
       break;
     }
     case UIProxyConfig::MODE_DIRECT:
     case UIProxyConfig::MODE_AUTO_DETECT:
       break;
   }
 
   VLOG(2) << " NEW PROXY: " << *proxy_settings;
 }
 
 }  // namespace extensions