user_manager: Remove deps on session_manager

chrome/browser/chromeos/login/users/fake_chrome_user_manager.h

 // Copyright 2015 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 CHROME_BROWSER_CHROMEOS_LOGIN_USERS_FAKE_CHROME_USER_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USERS_FAKE_CHROME_USER_MANAGER_H_
 
 #include <map>
 #include <memory>
 #include <string>
@@ skipping 42 matching lines @@
   UserImageManager* GetUserImageManager(const AccountId& account_id) override;
   SupervisedUserManager* GetSupervisedUserManager() override;
   void SetUserFlow(const AccountId& account_id, UserFlow* flow) override;
   UserFlow* GetCurrentUserFlow() const override;
   UserFlow* GetUserFlow(const AccountId& account_id) const override;
   void ResetUserFlow(const AccountId& account_id) override;
   user_manager::UserList GetUsersAllowedForSupervisedUsersCreation()
       const override;
   void SwitchActiveUser(const AccountId& account_id) override;
   const AccountId& GetOwnerAccountId() const override;
-  void SessionStarted() override;
+  void OnSessionStarted() override;
   void RemoveUser(const AccountId& account_id,
                   user_manager::RemoveUserDelegate* delegate) override;
   void RemoveUserFromList(const AccountId& account_id) override;
   void UpdateLoginState(const user_manager::User* active_user,
                         const user_manager::User* primary_user,
                         bool is_current_user_owner) const override;
   bool GetPlatformKnownUserId(const std::string& user_email,
                               const std::string& gaia_id,
                               AccountId* out_account_id) const override;
   const AccountId& GetGuestAccountId() const override;
@@ skipping 46 matching lines @@
   // Specific flows by user e-mail.
   // Keys should be canonicalized before access.
   FlowMap specific_flows_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeChromeUserManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USERS_FAKE_CHROME_USER_MANAGER_H_