UMA to track the reason for re-auth (draft).

components/user_manager/user_manager_base.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COMPONENTS_USER_MANAGER_USER_MANAGER_BASE_H_
 #define COMPONENTS_USER_MANAGER_USER_MANAGER_BASE_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 105 matching lines @@
                               std::string* out_value) override;
   void SetKnownUserStringPref(const UserID& user_id,
                               const std::string& path,
                               const std::string& in_value) override;
   bool GetKnownUserBooleanPref(const UserID& user_id,
                                const std::string& path,
                                bool* out_value) override;
   void SetKnownUserBooleanPref(const UserID& user_id,
                                const std::string& path,
                                const bool in_value) override;
+  bool GetKnownUserIntegerPref(const UserID& user_id,
+                               const std::string& path,
+                               int* out_value) override;
+  void SetKnownUserIntegerPref(const UserID& user_id,
+                               const std::string& path,
+                               const int in_value) override;
   void UpdateGaiaID(const UserID& user_id, const std::string& gaia_id) override;
   bool FindGaiaID(const UserID& user_id, std::string* out_value) override;
   void UpdateUsingSAML(const std::string& user_id,
                        const bool using_saml) override;
   bool FindUsingSAML(const std::string& user_id) override;
   void SetKnownUserDeviceId(const UserID& user_id,
                             const std::string& device_id) override;
   std::string GetKnownUserDeviceId(const UserID& user_id) override;
+  void UpdateReauthReason(const std::string& user_id,
+                          const int reauth_reason) override;
+  bool FindReauthReason(const std::string& user_id, int* out_value) override;
 
   virtual void SetIsCurrentUserNew(bool is_new);
 
   // TODO(xiyuan): Figure out a better way to expose this info.
   virtual bool HasPendingBootstrap(const std::string& user_id) const;
 
   // Helper function that copies users from |users_list| to |users_vector| and
   // |users_set|. Duplicates and users already present in |existing_users| are
   // skipped.
   static void ParseUserList(const base::ListValue& users_list,
@@ skipping 269 matching lines @@
   scoped_refptr<base::TaskRunner> blocking_task_runner_;
 
   base::WeakPtrFactory<UserManagerBase> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(UserManagerBase);
 };
 
 }  // namespace user_manager
 
 #endif  // COMPONENTS_USER_MANAGER_USER_MANAGER_BASE_H_