Update last used profile when deleting profile

chrome/browser/app_controller_mac.mm

 // Copyright (c) 2011 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.
 
 #import "chrome/browser/app_controller_mac.h"
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/mac/foundation_util.h"
@@ skipping 443 matching lines @@
                withObject:nil
                afterDelay:0.0];
   }
 
   // If the window changed to a new BrowserWindowController, update the profile.
   id windowController = [[notify object] windowController];
   if ([windowController isKindOfClass:[BrowserWindowController class]]) {
     // If the profile is incognito, use the original profile.
     Profile* newProfile = [windowController profile]->GetOriginalProfile();
     [self windowChangedToProfile:newProfile];
+  } else if (BrowserList::empty()) {
+    [self windowChangedToProfile:
+        g_browser_process->profile_manager()->GetLastUsedProfile()];
   }
 }
 
 // Called when the user has changed browser windows, meaning the backing profile
 // may have changed. This can cause a rebuild of the user-data menus. This is a
 // no-op if the new profile is the same as the current one. This will always be
 // the original profile and never incognito.
 - (void)windowChangedToProfile:(Profile*)profile {
   if (lastProfile_ == profile)
     return;
@@ skipping 806 matching lines @@
 
 }  // namespace browser
 
 namespace app_controller_mac {
 
 bool IsOpeningNewWindow() {
   return g_is_opening_new_window;
 }
 
 }  // namespace app_controller_mac