Reverting this as it causes browser tests on the Linux ChromiumOS builder to fail.

chrome/browser/profiles/profile_dependency_manager.cc

Index: chrome/browser/profiles/profile_dependency_manager.cc
===================================================================
--- chrome/browser/profiles/profile_dependency_manager.cc	(revision 150390)
+++ chrome/browser/profiles/profile_dependency_manager.cc	(working copy)
@@ -60,7 +60,6 @@
 
 #if defined(ENABLE_CONFIGURATION_POLICY)
 #include "chrome/browser/policy/managed_mode_policy_provider_factory.h"
-#include "chrome/browser/policy/user_policy_signin_service_factory.h"
 #endif
 
 #if defined(USE_AURA)
@@ -234,10 +233,6 @@
   PinnedTabServiceFactory::GetInstance();
 #endif
   PluginPrefsFactory::GetInstance();
-#if defined(ENABLE_CONFIGURATION_POLICY) && !defined(OS_CHROMEOS)
-  // Not used on chromeos because signin happens before the profile is loaded.
-  policy::UserPolicySigninServiceFactory::GetInstance();
-#endif
   predictors::AutocompleteActionPredictorFactory::GetInstance();
   predictors::PredictorDatabaseFactory::GetInstance();
   predictors::ResourcePrefetchPredictorFactory::GetInstance();