Remove NetworkStateInformer's dependency on ProxyConfigServiceImpl.

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

Index: chrome/browser/ui/webui/chromeos/login/network_state_informer.h
diff --git a/chrome/browser/ui/webui/chromeos/login/network_state_informer.h b/chrome/browser/ui/webui/chromeos/login/network_state_informer.h
index 180cb3b1deb317ca9fb740e32fe7ac45c1cc1ea9..6867f0bb9f86305f6f5db80ad2360e23cd85803b 100644
--- a/chrome/browser/ui/webui/chromeos/login/network_state_informer.h
+++ b/chrome/browser/ui/webui/chromeos/login/network_state_informer.h
@@ -104,21 +104,6 @@ class NetworkStateInformer
   std::string last_network_type() const { return last_network_type_; }
 
  private:
-  struct ProxyState {
-    ProxyState() : configured(false) {
-    }
-
-    ProxyState(const std::string& proxy_config, bool configured)
-        : proxy_config(proxy_config),
-          configured(configured) {
-    }
-
-    std::string proxy_config;
-    bool configured;
-  };
-
-  typedef std::map<std::string, ProxyState> ProxyStateMap;
-
   friend class base::RefCounted<NetworkStateInformer>;
 
   virtual ~NetworkStateInformer();
@@ -141,9 +126,6 @@ class NetworkStateInformer
   std::string last_network_service_path_;
   std::string last_network_type_;
   base::CancelableClosure check_state_;
-
-  // Caches proxy state for active networks.
-  ProxyStateMap proxy_state_map_;
 };
 
 }  // namespace chromeos