Update SupportsUserData uses with unique_ptr.

chrome/browser/net/nss_context_chromeos.cc

 // Copyright (c) 2013 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/net/nss_context.h"
 
 #include <utility>
 
 #include "base/macros.h"
+#include "base/memory/ptr_util.h"
 #include "base/memory/weak_ptr.h"
 #include "base/supports_user_data.h"
 #include "chrome/browser/profiles/profile_io_data.h"
 #include "content/public/browser/browser_thread.h"
 #include "crypto/nss_util_internal.h"
 #include "net/cert/nss_cert_database_chromeos.h"
 
 namespace {
 
 void* kDatabaseManagerKey = &kDatabaseManagerKey;
@@ skipping 61 matching lines @@
 net::NSSCertDatabaseChromeOS* GetNSSCertDatabaseChromeOS(
     content::ResourceContext* context,
     const NSSCertDatabaseChromeOSManager::GetNSSCertDatabaseCallback&
         callback) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
   NSSCertDatabaseChromeOSManager* manager =
       static_cast<NSSCertDatabaseChromeOSManager*>(
           context->GetUserData(kDatabaseManagerKey));
   if (!manager) {
     manager = new NSSCertDatabaseChromeOSManager(GetUsername(context));
-    context->SetUserData(kDatabaseManagerKey, manager);
+    context->SetUserData(kDatabaseManagerKey, base::WrapUnique(manager));
   }
   return manager->GetNSSCertDatabase(callback);
 }
 
 void CallWithNSSCertDatabase(
     const base::Callback<void(net::NSSCertDatabase*)>& callback,
     net::NSSCertDatabaseChromeOS* db) {
   callback.Run(db);
 }
 
@@ skipping 37 matching lines @@
 
 void EnableNSSSystemKeySlotForResourceContext(
     content::ResourceContext* context) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
   base::Callback<void(crypto::ScopedPK11Slot)> callback =
       base::Bind(&SetSystemSlotOfDBForResourceContext, context);
   crypto::ScopedPK11Slot system_slot = crypto::GetSystemNSSKeySlot(callback);
   if (system_slot)
     callback.Run(std::move(system_slot));
 }