Migrate ProxyConfigServiceImpl to NetworkStateHandler and NetworkProfileHandler.

chrome/browser/ui/webui/chromeos/login/network_state_informer.cc

Index: chrome/browser/ui/webui/chromeos/login/network_state_informer.cc
diff --git a/chrome/browser/ui/webui/chromeos/login/network_state_informer.cc b/chrome/browser/ui/webui/chromeos/login/network_state_informer.cc
index 1c9ea71cae30565971b3d77707cf26d39a0132e3..d14c2663798a9ab844331e80aec00aab873ea04e 100644
--- a/chrome/browser/ui/webui/chromeos/login/network_state_informer.cc
+++ b/chrome/browser/ui/webui/chromeos/login/network_state_informer.cc
@@ -11,6 +11,7 @@
 #include "chrome/browser/chromeos/login/screens/error_screen_actor.h"
 #include "chrome/browser/chromeos/proxy_config_service_impl.h"
 #include "chrome/common/chrome_notification_types.h"
+#include "chromeos/network/network_state_handler.h"
 #include "net/proxy/proxy_config.h"
 
 namespace {
@@ -210,18 +211,16 @@ NetworkStateInformer::State NetworkStateInformer::GetNetworkState(
 
 bool NetworkStateInformer::IsProxyConfigured(const Network* network) {
   DCHECK(network);
-  ProxyStateMap::iterator it = proxy_state_map_.find(network->unique_id());
-  if (it != proxy_state_map_.end() &&
-      it->second.proxy_config == network->proxy_config()) {
-    return it->second.configured;
-  }
+  const NetworkState* network_state =
+      NetworkStateHandler::Get()->GetNetworkState(network->service_path());
+  DCHECK(network_state);
+
   net::ProxyConfig proxy_config;
-  if (!ProxyConfigServiceImpl::ParseProxyConfig(network, &proxy_config))
+  if (!ProxyConfigServiceImpl::ParseProxyConfig(*network_state,
+                                                &proxy_config)) {
     return false;
-  bool configured = !proxy_config.proxy_rules().empty();
-  proxy_state_map_[network->unique_id()] =
-      ProxyState(network->proxy_config(), configured);
-  return configured;
+  }
+  return !proxy_config.proxy_rules().empty();
 }
 
 }  // namespace chromeos