cros: Change max users to be a constant

ash/common/session/session_controller_unittest.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/common/session/session_controller.h"
 
 #include <memory>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 43 matching lines @@
 
  private:
   session_manager::SessionState state_ = session_manager::SessionState::UNKNOWN;
   AccountId active_account_id_;
   std::vector<AccountId> user_session_account_ids_;
 
   DISALLOW_COPY_AND_ASSIGN(TestSessionStateObserver);
 };
 
 void FillDefaultSessionInfo(mojom::SessionInfo* info) {
-  info->max_users = 123;
   info->can_lock_screen = true;
   info->should_lock_screen_automatically = true;
   info->add_user_session_policy = AddUserSessionPolicy::ALLOWED;
   info->state = session_manager::SessionState::LOGIN_PRIMARY;
 }
 
 class SessionControllerTest : public testing::Test {
  public:
   SessionControllerTest() {}
   ~SessionControllerTest() override {}
@@ skipping 42 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(SessionControllerTest);
 };
 
 // Tests that the simple session info is reflected properly.
 TEST_F(SessionControllerTest, SimpleSessionInfo) {
   mojom::SessionInfo info;
   FillDefaultSessionInfo(&info);
   SetSessionInfo(info);
 
-  EXPECT_EQ(123, controller()->GetMaximumNumberOfLoggedInUsers());
+  EXPECT_EQ(session_manager::kMaxmiumNumberOfUserSessions,
+            controller()->GetMaximumNumberOfLoggedInUsers());
   EXPECT_TRUE(controller()->CanLockScreen());
   EXPECT_TRUE(controller()->ShouldLockScreenAutomatically());
 
   info.can_lock_screen = false;
   SetSessionInfo(info);
   EXPECT_FALSE(controller()->CanLockScreen());
   EXPECT_TRUE(controller()->ShouldLockScreenAutomatically());
 
   info.should_lock_screen_automatically = false;
   SetSessionInfo(info);
@@ skipping 89 matching lines @@
   EXPECT_EQ("user2@test.com", observer()->active_account_id().GetUserEmail());
 
   order = {1u, 2u};
   controller()->SetUserSessionOrder(order);
   EXPECT_EQ("user1@test.com,user2@test.com,", GetUserSessionEmails());
   EXPECT_EQ("user1@test.com", observer()->active_account_id().GetUserEmail());
 }
 
 }  // namespace
 }  // namespace ash