Replace chromeos::UserManager::Get() with chromeos::GetUserManager().

chrome/browser/chromeos/login/ui/webui_login_display.cc

Index: chrome/browser/chromeos/login/ui/webui_login_display.cc
diff --git a/chrome/browser/chromeos/login/ui/webui_login_display.cc b/chrome/browser/chromeos/login/ui/webui_login_display.cc
index 173abaa62e0a874718a699d1e53c91f41bea9151..bc843aae87a319675cecc76625093ce55c644ab0 100644
--- a/chrome/browser/chromeos/login/ui/webui_login_display.cc
+++ b/chrome/browser/chromeos/login/ui/webui_login_display.cc
@@ -120,7 +120,7 @@ void WebUILoginDisplay::SetUIEnabled(bool is_enabled) {
   // Allow this call only before user sign in or at lock screen.
   // If this call is made after new user signs in but login screen is still
   // around that would trigger a sign in extension refresh.
-  if (is_enabled && (!UserManager::Get()->IsUserLoggedIn() ||
+  if (is_enabled && (!GetUserManager()->IsUserLoggedIn() ||
                      ScreenLocker::default_screen_locker())) {
     ClearAndEnablePassword();
   }
@@ -274,7 +274,7 @@ void WebUILoginDisplay::OnSigninScreenReady() {
 }
 
 void WebUILoginDisplay::RemoveUser(const std::string& username) {
-  UserManager::Get()->RemoveUser(username, this);
+  GetUserManager()->RemoveUser(username, this);
 }
 
 void WebUILoginDisplay::ResyncUserData() {