tray: Show warning in network tray when VPN or proxy used.

chromeos/network/proxy/ui_proxy_config_service.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 "chromeos/network/proxy/ui_proxy_config_service.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 135 matching lines @@
       config.ToPrefProxyConfig());
 
   VLOG(1) << "Set proxy for " << current_ui_network_guid_ << " to "
           << *proxy_config_value;
 
   ProxyConfigDictionary proxy_config_dict(std::move(proxy_config_value));
   proxy_config::SetProxyConfigForNetwork(proxy_config_dict, *network);
   current_ui_config_.state = ProxyPrefs::CONFIG_SYSTEM;
 }
 
+bool UIProxyConfigService::HasDefaultNetworkProxyConfigured() {
+  const NetworkState* network =
+      NetworkHandler::Get()->network_state_handler()->DefaultNetwork();
+  if (!network)
+    return false;
+  onc::ONCSource onc_source = onc::ONC_SOURCE_NONE;
+  std::unique_ptr<ProxyConfigDictionary> proxy_dict =
+      proxy_config::GetProxyConfigForNetwork(NULL, local_state_prefs_, *network,

[stevenjb, 2017/04/21 18:38:24]

nullptr

[sammiequon, 2017/04/21 19:02:53]

Done.

+                                             &onc_source);
+  ProxyPrefs::ProxyMode mode;
+  return (proxy_dict && proxy_dict->GetMode(&mode) &&
+          mode == ProxyPrefs::MODE_FIXED_SERVERS);
+}
+
 void UIProxyConfigService::DetermineEffectiveConfig(
     const NetworkState& network) {
   DCHECK(local_state_prefs_);
 
   // The pref service to read proxy settings that apply to all networks.
   // Settings from the profile overrule local state.
   PrefService* top_pref_service =
       profile_prefs_ ? profile_prefs_ : local_state_prefs_;
 
   // Get prefs proxy config if available.
@@ skipping 42 matching lines @@
           current_ui_network_guid_);
   if (!network)
     return;
   UpdateFromPrefs(current_ui_network_guid_);
   NetworkHandler::Get()
       ->network_state_handler()
       ->SendUpdateNotificationForNetwork(network->path());
 }
 
 }  // namespace chromeos