Turn on -Wdelete-non-virtual-dtor for chromeos as well.

chrome/browser/chromeos/login/user_manager.cc

 // 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.
 
 #include "chrome/browser/chromeos/login/user_manager.h"
 
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
@@ skipping 123 matching lines @@
   // Creates new remove attempt for the given user. Note, |delegate| can
   // be NULL.
   RemoveAttempt(const std::string& user_email,
                 chromeos::RemoveUserDelegate* delegate)
       : user_email_(user_email),
         delegate_(delegate),
         method_factory_(this) {
     RemoveUser();
   }
 
+  virtual ~RemoveAttempt() {}
+
   void RemoveUser() {
     // Owner is not allowed to be removed from the device.
     // Must not proceed without signature verification.
     UserCrosSettingsProvider user_settings;
     bool trusted_owner_available = user_settings.RequestTrustedOwner(
         method_factory_.NewRunnableMethod(&RemoveAttempt::RemoveUser));
     if (!trusted_owner_available) {
       // Value of owner email is still not verified.
       // Another attempt will be invoked after verification completion.
       return;
@@ skipping 479 matching lines @@
   base::AutoLock lk(current_user_is_owner_lock_);
   return current_user_is_owner_;
 }
 
 void UserManager::set_current_user_is_owner(bool current_user_is_owner) {
   base::AutoLock lk(current_user_is_owner_lock_);
   current_user_is_owner_ = current_user_is_owner;
 }
 
 }  // namespace chromeos