Reland: Stop passing raw pointers to base::Value API in c/b/chromeos and c/b/extensions

chrome/browser/content_settings/content_settings_pref_provider_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 "components/content_settings/core/browser/content_settings_pref_provider.h"
 
 #include <memory>
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
@@ skipping 431 matching lines @@
   // is sent, and this used to happen when |PrefProvider| was still holding its
   // lock.
 
   const WebsiteSettingsInfo* info = WebsiteSettingsRegistry::GetInstance()->Get(
       CONTENT_SETTINGS_TYPE_COOKIES);
   PrefProvider provider(&prefs, false);
   DeadlockCheckerObserver observer(&prefs, &provider);
   {
     DictionaryPrefUpdate update(&prefs, info->pref_name());
     base::DictionaryValue* mutable_settings = update.Get();
-    mutable_settings->SetWithoutPathExpansion("www.example.com,*",
-                                              new base::DictionaryValue());
+    mutable_settings->SetWithoutPathExpansion(
+        "www.example.com,*", base::MakeUnique<base::DictionaryValue>());
   }
   EXPECT_TRUE(observer.notification_received());
 
   provider.ShutdownOnUIThread();
 }
 
 TEST_F(PrefProviderTest, IncognitoInheritsValueMap) {
   sync_preferences::TestingPrefServiceSyncable prefs;
   PrefProvider::RegisterProfilePrefs(prefs.registry());
 
@@ skipping 126 matching lines @@
   for (const char* pref : nonempty_prefs) {
     DictionaryPrefUpdate update(&prefs, pref);
     const base::DictionaryValue* dictionary = update.Get();
     EXPECT_EQ(1u, dictionary->size());
   }
 
   provider.ShutdownOnUIThread();
 }
 
 }  // namespace content_settings