Remove stl_util's deletion functions from net/proxy/.

net/proxy/proxy_config_service_win.h

 // 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.
 
 #ifndef NET_PROXY_PROXY_CONFIG_SERVICE_WIN_H_
 #define NET_PROXY_PROXY_CONFIG_SERVICE_WIN_H_
 
 #include <windows.h>
 #include <winhttp.h>
 
+#include <memory>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "net/proxy/polling_proxy_config_service.h"
 
 namespace base {
 namespace win {
 class RegKey;
 }
@@ skipping 27 matching lines @@
     : public PollingProxyConfigService {
  public:
   ProxyConfigServiceWin();
   ~ProxyConfigServiceWin() override;
 
   // Overrides a function from PollingProxyConfigService.
   void AddObserver(Observer* observer) override;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(ProxyConfigServiceWinTest, SetFromIEConfig);
-  typedef std::vector<base::win::RegKey*> RegKeyList;
 
   // Registers change observers on the registry keys relating to proxy settings.
   void StartWatchingRegistryForChanges();
 
   // Creates a new key and appends it to |keys_to_watch_|. If the key fails to
   // be created, it is not appended to the list and we return false.
   bool AddKeyToWatchList(HKEY rootkey, const wchar_t* subkey);
 
   // This is called whenever one of the registry keys we are watching change.
   void OnObjectSignaled(base::win::RegKey* key);
 
   static void GetCurrentProxyConfig(ProxyConfig* config);
 
   // Set |config| using the proxy configuration values of |ie_config|.
   static void SetFromIEConfig(
       ProxyConfig* config,
       const WINHTTP_CURRENT_USER_IE_PROXY_CONFIG& ie_config);
 
-  RegKeyList keys_to_watch_;
+  std::vector<std::unique_ptr<base::win::RegKey>> keys_to_watch_;
 };
 
 }  // namespace net
 
 #endif  // NET_PROXY_PROXY_CONFIG_SERVICE_WIN_H_