Remove stl_util's STLDeleteContainerPairSecondPointers.

chrome/browser/password_manager/password_store_mac_unittest.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/password_manager/password_store_mac.h"
 
 #include <stddef.h>
 
 #include <string>
 
@@ skipping 496 matching lines @@
               keychain_adapter.HasPasswordsMergeableWithForm(*query_form));
     std::vector<SecKeychainItemRef> keychain_items;
     std::vector<internal_keychain_helpers::ItemFormPair> item_form_pairs =
         internal_keychain_helpers::
             ExtractAllKeychainItemAttributesIntoPasswordForms(&keychain_items,
                                                               *keychain_);
     matching_items =
         internal_keychain_helpers::ExtractPasswordsMergeableWithForm(
             *keychain_, item_form_pairs, *query_form);
     EXPECT_EQ(test_data[i].expected_merge_matches, matching_items.size());
-    base::STLDeleteContainerPairSecondPointers(item_form_pairs.begin(),
-                                               item_form_pairs.end());
     for (std::vector<SecKeychainItemRef>::iterator i = keychain_items.begin();
          i != keychain_items.end(); ++i) {
       keychain_->Free(*i);
     }
 
     // None of the pre-seeded items are owned by us, so none should match an
     // owned-passwords-only search.
     matching_items = owned_keychain_adapter.PasswordsFillingForm(
         query_form->signon_realm, query_form->scheme);
     EXPECT_EQ(0U, matching_items.size());
@@ skipping 1582 matching lines @@
   EXPECT_EQ(2u, passwords.size());
 
   // Delete everyhting but only the Chrome-owned item should be affected.
   PasswordStoreMac::CleanUpKeychain(keychain(), passwords);
   passwords = password_manager_util::ConvertScopedVector(
       keychain_adapter.GetAllPasswordFormPasswords());
   ASSERT_EQ(1u, passwords.size());
   EXPECT_EQ("http://some.domain.com/", passwords[0]->signon_realm);
   EXPECT_EQ(ASCIIToUTF16("sekrit"), passwords[0]->password_value);
 }