iOS factories for SigninManager and GaiaCookieManagerService

ios/public/provider/chrome/browser/keyed_service_provider.h

Index: ios/public/provider/chrome/browser/keyed_service_provider.h
diff --git a/ios/public/provider/chrome/browser/keyed_service_provider.h b/ios/public/provider/chrome/browser/keyed_service_provider.h
index 2ee560a392e999a556f39eb1d902fc34fa0c3e5c..63f2f3c72c847733908ba7fb7b5193b342920442 100644
--- a/ios/public/provider/chrome/browser/keyed_service_provider.h
+++ b/ios/public/provider/chrome/browser/keyed_service_provider.h
@@ -11,7 +11,6 @@
 enum class ServiceAccessType;
 
 class KeyedServiceBaseFactory;
-class SigninManager;
 
 namespace autofill {
 class PersonalDataManager;
@@ -53,13 +52,6 @@ class KeyedServiceProvider {
   virtual bookmarks::BookmarkModel* GetBookmarkModelForBrowserState(
       ChromeBrowserState* browser_state) = 0;
 
-  // Returns the SigninManager factory for dependencies.
-  virtual KeyedServiceBaseFactory* GetSigninManagerFactory() = 0;
-
-  // Returns an instance of SigninManager tied to |browser_state|.
-  virtual SigninManager* GetSigninManagerForBrowserState(
-      ChromeBrowserState* browser_state) = 0;
-
   // Returns the autofill::PersonalDataManager factory for dependencies.
   virtual KeyedServiceBaseFactory* GetPersonalDataManagerFactory() = 0;