Cleanup the UseSharedProxies preference.

chrome/browser/chromeos/ui_proxy_config_service.cc

Index: chrome/browser/chromeos/ui_proxy_config_service.cc
diff --git a/chrome/browser/chromeos/ui_proxy_config_service.cc b/chrome/browser/chromeos/ui_proxy_config_service.cc
index 0f6988a65c2a2c769d7d302e78c8ee4267007526..4c73caf999d408259191ac27241d86281092c1b7 100644
--- a/chrome/browser/chromeos/ui_proxy_config_service.cc
+++ b/chrome/browser/chromeos/ui_proxy_config_service.cc
@@ -62,7 +62,9 @@ UIProxyConfigService::UIProxyConfigService() {
 UIProxyConfigService::~UIProxyConfigService() {
 }
 
-void UIProxyConfigService::SetPrefs(PrefService* pref_service) {
+void UIProxyConfigService::SetPrefs(bool login_profile,
+                                    PrefService* pref_service) {
+  login_profile_ = login_profile;
   pref_service_ = pref_service;
 }
 
@@ -158,7 +160,8 @@ void UIProxyConfigService::DetermineEffectiveConfig(
     current_ui_config_.user_modifiable = false;
   } else {
     current_ui_config_.user_modifiable =
-        !ProxyConfigServiceImpl::IgnoreProxy(pref_service_,
+        !ProxyConfigServiceImpl::IgnoreProxy(login_profile_,
+                                             pref_service_,
                                              network.profile_path(),
                                              network.onc_source());
   }