Rewrite simple uses of base::ListValue::Append() taking a raw pointer var.

chrome/browser/speech/extension_api/tts_extension_api.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/speech/extension_api/tts_extension_api.h"
 
 #include <stddef.h>
+
+#include <memory>
 #include <string>
 #include <utility>
 
 #include "base/lazy_instance.h"
 #include "base/memory/ptr_util.h"
 #include "base/values.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/speech/extension_api/tts_engine_extension_api.h"
 #include "chrome/browser/speech/extension_api/tts_engine_extension_observer.h"
 #include "chrome/browser/speech/extension_api/tts_extension_api_constants.h"
@@ skipping 296 matching lines @@
   return true;
 }
 
 bool TtsGetVoicesFunction::RunSync() {
   std::vector<VoiceData> voices;
   TtsController::GetInstance()->GetVoices(GetProfile(), &voices);
 
   std::unique_ptr<base::ListValue> result_voices(new base::ListValue());
   for (size_t i = 0; i < voices.size(); ++i) {
     const VoiceData& voice = voices[i];
-    base::DictionaryValue* result_voice = new base::DictionaryValue();
+    std::unique_ptr<base::DictionaryValue> result_voice(
+        new base::DictionaryValue());
     result_voice->SetString(constants::kVoiceNameKey, voice.name);
     result_voice->SetBoolean(constants::kRemoteKey, voice.remote);
     if (!voice.lang.empty())
       result_voice->SetString(constants::kLangKey, voice.lang);
     if (voice.gender == TTS_GENDER_MALE)
       result_voice->SetString(constants::kGenderKey, constants::kGenderMale);
     else if (voice.gender == TTS_GENDER_FEMALE)
       result_voice->SetString(constants::kGenderKey, constants::kGenderFemale);
     if (!voice.extension_id.empty())
       result_voice->SetString(constants::kExtensionIdKey, voice.extension_id);
 
     base::ListValue* event_types = new base::ListValue();
     for (std::set<TtsEventType>::iterator iter = voice.events.begin();
          iter != voice.events.end(); ++iter) {
       const char* event_name_constant = TtsEventTypeToString(*iter);
       event_types->AppendString(event_name_constant);
     }
     result_voice->Set(constants::kEventTypesKey, event_types);
 
-    result_voices->Append(result_voice);
+    result_voices->Append(std::move(result_voice));
   }
 
   SetResult(std::move(result_voices));
   return true;
 }
 
 TtsAPI::TtsAPI(content::BrowserContext* context) {
   ExtensionFunctionRegistry* registry =
       ExtensionFunctionRegistry::GetInstance();
   registry->RegisterFunction<ExtensionTtsEngineSendTtsEventFunction>();
@@ skipping 12 matching lines @@
 }
 
 static base::LazyInstance<BrowserContextKeyedAPIFactory<TtsAPI> > g_factory =
     LAZY_INSTANCE_INITIALIZER;
 
 BrowserContextKeyedAPIFactory<TtsAPI>* TtsAPI::GetFactoryInstance() {
   return g_factory.Pointer();
 }
 
 }  // namespace extensions