Extract common per-network proxy configuration functions.

chrome/browser/chromeos/ui_proxy_config_service.h

Index: chrome/browser/chromeos/ui_proxy_config_service.h
diff --git a/chrome/browser/chromeos/ui_proxy_config_service.h b/chrome/browser/chromeos/ui_proxy_config_service.h
index ec2f273bf79cca7decbbd5dd20ae8a5df13f6244..05d867e572faf5c54ec0f358620cd22bd90cd17c 100644
--- a/chrome/browser/chromeos/ui_proxy_config_service.h
+++ b/chrome/browser/chromeos/ui_proxy_config_service.h
@@ -14,7 +14,7 @@ class PrefService;
 
 namespace chromeos {
 
-class Network;
+class NetworkState;
 
 // This class is only accessed from the UI via Profile::GetProxyConfigTracker to
 // allow the user to read and modify the proxy configuration via
@@ -49,7 +49,7 @@ class UIProxyConfigService {
   // |network| and if user is using shared proxies.  The effective config is
   // stored in |current_ui_config_| but not activated on network stack, and
   // hence, not picked up by observers.
-  void DetermineEffectiveConfig(const Network& network);
+  void DetermineEffectiveConfig(const NetworkState& network);
 
   // Service path of network whose proxy configuration is being displayed or
   // edited via UI.