Migrate ProxyConfigServiceImpl to NetworkStateHandler and NetworkProfileHandler.

chrome/browser/ui/webui/chromeos/proxy_settings_ui.cc

Index: chrome/browser/ui/webui/chromeos/proxy_settings_ui.cc
diff --git a/chrome/browser/ui/webui/chromeos/proxy_settings_ui.cc b/chrome/browser/ui/webui/chromeos/proxy_settings_ui.cc
index 37dc87629c63620eb528f7c4c4b80bead868b5a8..5b6c1d5a170c4f59f2875fac8d13812d833fd0cc 100644
--- a/chrome/browser/ui/webui/chromeos/proxy_settings_ui.cc
+++ b/chrome/browser/ui/webui/chromeos/proxy_settings_ui.cc
@@ -126,7 +126,7 @@ void ProxySettingsUI::InitializeHandlers() {
   proxy_handler_->InitializePage();
   Profile* profile = Profile::FromWebUI(web_ui());
   PrefProxyConfigTracker* proxy_tracker = profile->GetProxyConfigTracker();
-  proxy_tracker->UIMakeActiveNetworkCurrent();
+  proxy_tracker->UIMakeDefaultNetworkCurrent();
   std::string network_name;
   proxy_tracker->UIGetCurrentNetworkName(&network_name);
 }