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

chrome/browser/extensions/external_pref_loader.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/extensions/external_pref_loader.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/files/file_enumerator.h"
@@ skipping 287 matching lines @@
 #endif
 
     DVLOG(1) << "Reading json file: "
              << extension_candidate_path.LossyDisplayName();
 
     JSONFileValueDeserializer deserializer(extension_candidate_path);
     std::unique_ptr<base::DictionaryValue> ext_prefs =
         ExtractExtensionPrefs(&deserializer, extension_candidate_path);
     if (ext_prefs) {
       DVLOG(1) << "Adding extension with id: " << id;
-      prefs->Set(id, ext_prefs.release());
+      prefs->Set(id, std::move(ext_prefs));
     }
   }
 }
 
 ExternalTestingLoader::ExternalTestingLoader(
     const std::string& json_data,
     const base::FilePath& fake_base_path)
     : fake_base_path_(fake_base_path) {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   JSONStringValueDeserializer deserializer(json_data);
   base::FilePath fake_json_path = fake_base_path.AppendASCII("fake.json");
   testing_prefs_ = ExtractExtensionPrefs(&deserializer, fake_json_path);
 }
 
 void ExternalTestingLoader::StartLoading() {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   prefs_.reset(testing_prefs_->DeepCopy());
   LoadFinished();
 }
 
 ExternalTestingLoader::~ExternalTestingLoader() {}
 
 const base::FilePath ExternalTestingLoader::GetBaseCrxFilePath() {
   return fake_base_path_;
 }
 
 }  // namespace extensions