Update from https://crrev.com/308331

net/proxy/proxy_config_service_android.cc

Index: net/proxy/proxy_config_service_android.cc
diff --git a/net/proxy/proxy_config_service_android.cc b/net/proxy/proxy_config_service_android.cc
index 50407fe21b7b44dd923730b2f948ab1e0b84efc8..80e3b929b454261cb0b6ab10e2e6b900f29be83f 100644
--- a/net/proxy/proxy_config_service_android.cc
+++ b/net/proxy/proxy_config_service_android.cc
@@ -98,6 +98,12 @@ void AddBypassRules(const std::string& scheme,
   // by | and that use * as a wildcard. For example, setting the
   // http.nonProxyHosts property to *.android.com|*.kernel.org will cause
   // requests to http://developer.android.com to be made without a proxy.
+
+  // Force localhost to be on the proxy exclusion list;
+  // otherwise all localhost traffic is routed through
+  // the proxy which is not desired.
+  bypass_rules->AddRuleToBypassLocal();
+
   std::string non_proxy_hosts =
       get_property.Run(scheme + ".nonProxyHosts");
   if (non_proxy_hosts.empty())