Upon deletion of the profile don't fallback on current if it supervised.

chrome/browser/profiles/profile_manager.cc

 // Copyright (c) 2012 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 "chrome/browser/profiles/profile_manager.h"
 
 #include <stdint.h>
 
 #include <map>
 #include <set>
@@ skipping 1349 matching lines @@
   if (profile) {
     bool result = AddProfile(profile);
     DCHECK(result);
   }
   return profile;
 }
 
 #if !defined(OS_ANDROID)
 void ProfileManager::EnsureActiveProfileExistsBeforeDeletion(
     const CreateCallback& callback, const base::FilePath& profile_dir) {
-  // In case we delete non-active profile, just proceed.
-  const base::FilePath last_used_profile =
+  // In case we delete non-active profile and current profile is valid, proceed.
+  const base::FilePath last_used_profile_path =
       GetLastUsedProfileDir(user_data_dir_);
   const base::FilePath guest_profile_path = GetGuestProfilePath();
-  if (last_used_profile != profile_dir &&
-      last_used_profile != guest_profile_path) {
-    FinishDeletingProfile(profile_dir, last_used_profile);
+  Profile* last_used_profile = GetProfileByPath(last_used_profile_path);
+  if (last_used_profile_path != profile_dir &&
+      last_used_profile_path != guest_profile_path &&
+      last_used_profile != nullptr &&
+      !last_used_profile->IsLegacySupervised()) {
+    FinishDeletingProfile(profile_dir, last_used_profile_path);
     return;
   }
 
   // Search for an active browser and use its profile as active if possible.
   for (Browser* browser : *BrowserList::GetInstance()) {
     Profile* profile = browser->profile();
     base::FilePath cur_path = profile->GetPath();
     if (cur_path != profile_dir &&
         cur_path != guest_profile_path &&
         !profile->IsLegacySupervised() &&
@@ skipping 334 matching lines @@
 
   FinishDeletingProfile(profile_to_delete_path, new_active_profile_path);
   if (!original_callback.is_null())
     original_callback.Run(loaded_profile, status);
 }
 #endif  // !defined(OS_ANDROID)
 
 ProfileManagerWithoutInit::ProfileManagerWithoutInit(
     const base::FilePath& user_data_dir) : ProfileManager(user_data_dir) {
 }