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

chrome/browser/ui/ash/multi_user/multi_user_util.cc

Index: chrome/browser/ui/ash/multi_user/multi_user_util.cc
diff --git a/chrome/browser/ui/ash/multi_user/multi_user_util.cc b/chrome/browser/ui/ash/multi_user/multi_user_util.cc
index 9aecd9302ed313b22aaa4bdf208ecddc1cf4bbd6..4a44596fa82a78ab4d4d0ffab34131261ef34678 100644
--- a/chrome/browser/ui/ash/multi_user/multi_user_util.cc
+++ b/chrome/browser/ui/ash/multi_user/multi_user_util.cc
@@ -63,7 +63,7 @@ Profile* GetProfileFromWindow(aura::Window* window) {
 bool IsProfileFromActiveUser(Profile* profile) {
 #if defined(OS_CHROMEOS)
   return GetUserIDFromProfile(profile) ==
-         chromeos::UserManager::Get()->GetActiveUser()->email();
+         chromeos::GetUserManager()->GetActiveUser()->email();
 #else
   // In non Chrome OS configurations this will be always true since this only
   // makes sense in separate desktop mode.
@@ -73,7 +73,7 @@ bool IsProfileFromActiveUser(Profile* profile) {
 
 const std::string& GetCurrentUserId() {
 #if defined(OS_CHROMEOS)
-  return chromeos::UserManager::Get()->GetActiveUser()->email();
+  return chromeos::GetUserManager()->GetActiveUser()->email();
 #else
   return base::EmptyString();
 #endif