Remove configuration policy on iOS.

ios/chrome/browser/prefs/ios_chrome_pref_service_factory.h

Index: ios/chrome/browser/prefs/ios_chrome_pref_service_factory.h
diff --git a/ios/chrome/browser/prefs/ios_chrome_pref_service_factory.h b/ios/chrome/browser/prefs/ios_chrome_pref_service_factory.h
index 5168d294b977e11e83efcf9f3a39905f0ba578f3..5971ab21269ae64a7d113065de41303366abebe7 100644
--- a/ios/chrome/browser/prefs/ios_chrome_pref_service_factory.h
+++ b/ios/chrome/browser/prefs/ios_chrome_pref_service_factory.h
@@ -22,10 +22,6 @@ namespace ios {
 class ChromeBrowserState;
 }
 
-namespace policy {
-class PolicyService;
-}
-
 namespace syncable_prefs {
 class PrefServiceSyncable;
 }
@@ -37,13 +33,11 @@ class PrefRegistrySyncable;
 // Factory methods that create and initialize a new instance of a PrefService
 // for Chrome on iOS with the applicable PrefStores. The |pref_filename| points
 // to the user preference file. This is the usual way to create a new
-// PrefService. |policy_service| is used as the source for mandatory or
-// recommended policies. |pref_registry| keeps the list of registered prefs and
-// their default valuers. If |async| is true, asynchronous version is used.
+// PrefService. |pref_registry| keeps the list of registered prefs and their
+// default valuers. If |async| is true, asynchronous version is used.
 scoped_ptr<PrefService> CreateLocalState(
     const base::FilePath& pref_filename,
     base::SequencedTaskRunner* pref_io_task_runner,
-    policy::PolicyService* policy_service,
     const scoped_refptr<PrefRegistry>& pref_registry,
     bool async);
 
@@ -51,7 +45,6 @@ scoped_ptr<syncable_prefs::PrefServiceSyncable> CreateBrowserStatePrefs(
     const base::FilePath& browser_state_path,
     base::SequencedTaskRunner* pref_io_task_runner,
     TrackedPreferenceValidationDelegate* validation_delegate,
-    policy::PolicyService* policy_service,
     const scoped_refptr<user_prefs::PrefRegistrySyncable>& pref_registry,
     bool async);