chromeos: Fix shelf appearing at login screen under mash

ash/root_window_controller_unittest.cc

Index: ash/root_window_controller_unittest.cc
diff --git a/ash/root_window_controller_unittest.cc b/ash/root_window_controller_unittest.cc
index 43fd9ee96253bcc58ce340e19cc51ee898819ff1..8da08162328beb4b326b19583d2e2a9bf6bf5b66 100644
--- a/ash/root_window_controller_unittest.cc
+++ b/ash/root_window_controller_unittest.cc
@@ -8,6 +8,7 @@
 
 #include "ash/aura/wm_window_aura.h"
 #include "ash/common/material_design/material_design_controller.h"
+#include "ash/common/session/session_controller.h"
 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/system/tray/system_tray_delegate.h"
 #include "ash/common/wm/system_modal_container_layout_manager.h"
@@ -17,6 +18,7 @@
 #include "ash/common/wm_shell.h"
 #include "ash/common/wm_window.h"
 #include "ash/public/cpp/shell_window_ids.h"
+#include "ash/public/interfaces/session_controller.mojom.h"
 #include "ash/shell.h"
 #include "ash/test/ash_md_test_base.h"
 #include "ash/test/ash_test_base.h"
@@ -975,8 +977,8 @@ TEST_F(VirtualKeyboardRootWindowControllerTest,
   // Track the keyboard container window.
   aura::WindowTracker tracker;
   tracker.Add(keyboard_container);
-  // Mock a login user profile change to reinitialize the keyboard.
-  Shell::GetInstance()->OnLoginUserProfilePrepared();
+  // Reinitialize the keyboard.
+  Shell::GetInstance()->CreateKeyboard();
   // keyboard_container should no longer be present.
   EXPECT_FALSE(tracker.Contains(keyboard_container));
 }
@@ -1010,7 +1012,9 @@ TEST_F(VirtualKeyboardRootWindowControllerTest, RestoreWorkspaceAfterLogin) {
   }
 
   // Mock a login user profile change to reinitialize the keyboard.
-  Shell::GetInstance()->OnLoginUserProfilePrepared();
+  mojom::SessionInfoPtr info = mojom::SessionInfo::New();
+  info->state = session_manager::SessionState::ACTIVE;
+  WmShell::Get()->session_controller()->SetSessionInfo(std::move(info));
   EXPECT_EQ(display::Screen::GetScreen()->GetPrimaryDisplay().work_area(),
             before);
 }