ash: Use enum for SessionController::CycleActiveUser

ash/mus/bridge/wm_shell_mus.cc

 // Copyright 2016 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.
 
 #include "ash/mus/bridge/wm_shell_mus.h"
 
 #include <utility>
 
 #include "ash/common/accelerators/accelerator_controller.h"
 #include "ash/common/key_event_watcher.h"
@@ skipping 76 matching lines @@
   }
   bool ShouldShowAvatar(WmWindow* window) const override {
     NOTIMPLEMENTED();
     return !user_info_->GetImage().isNull();
   }
   gfx::ImageSkia GetAvatarImageForWindow(WmWindow* window) const override {
     NOTIMPLEMENTED();
     return gfx::ImageSkia();
   }
   void SwitchActiveUser(const AccountId& account_id) override {}
-  void CycleActiveUser(CycleUser cycle_user) override {}
+  void CycleActiveUser(CycleUserDirection direction) override {}
   bool IsMultiProfileAllowedByPrimaryUserPolicy() const override {
     return true;
   }
   void AddSessionStateObserver(ash::SessionStateObserver* observer) override {}
   void RemoveSessionStateObserver(
       ash::SessionStateObserver* observer) override {}
 
  private:
   bool screen_locked_;
 
@@ skipping 314 matching lines @@
 }
 
 void WmShellMus::CreatePrimaryHost() {}
 
 void WmShellMus::InitHosts(const ShellInitParams& init_params) {
   window_manager_->CreatePrimaryRootWindowController(
       base::WrapUnique(init_params.primary_window_tree_host));
 }
 }  // namespace mus
 }  // namespace ash