Revert of Wait until a new profile has been created before deleting the active profile.

chrome/browser/app_controller_mac.mm

Index: chrome/browser/app_controller_mac.mm
diff --git a/chrome/browser/app_controller_mac.mm b/chrome/browser/app_controller_mac.mm
index 866f7c009875b50a5bcb09b28ded63f4c8085fff..01feef4dbf749ac126f1cc56fec71712c3104fd7 100644
--- a/chrome/browser/app_controller_mac.mm
+++ b/chrome/browser/app_controller_mac.mm
@@ -897,9 +897,7 @@
   // already loaded a new one, so the pointer needs to be updated;
   // otherwise we will try to start up a browser window with a pointer
   // to the old profile.
-  // In a browser test, the application is not brought to the front, so
-  // |lastProfile_| might be null.
-  if (!lastProfile_ || profilePath == lastProfile_->GetPath())
+  if (lastProfile_ && profilePath == lastProfile_->GetPath())
     lastProfile_ = g_browser_process->profile_manager()->GetLastUsedProfile();
 
   auto it = profileBookmarkMenuBridgeMap_.find(profilePath);