Remove use of deprecated base::ListValue::Append(Value*) overload in extensions.

chrome/browser/extensions/api/font_settings/font_settings_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.
 
 // Font Settings Extension API implementation.
 
 #include "chrome/browser/extensions/api/font_settings/font_settings_api.h"
 
 #include <stddef.h>
 
@@ skipping 162 matching lines @@
   CHECK(pref);
 
   std::string font_name;
   if (!pref->GetValue()->GetAsString(&font_name)) {
     NOTREACHED();
     return;
   }
   font_name = MaybeGetLocalizedFontName(font_name);
 
   base::ListValue args;
-  base::DictionaryValue* dict = new base::DictionaryValue();
-  args.Append(dict);
+  std::unique_ptr<base::DictionaryValue> dict(new base::DictionaryValue());
   dict->SetString(kFontIdKey, font_name);
   dict->SetString(kGenericFamilyKey, generic_family);
   dict->SetString(kScriptKey, script);
+  args.Append(std::move(dict));
 
   extensions::preference_helpers::DispatchEventToExtensions(
       profile_, events::FONT_SETTINGS_ON_FONT_CHANGED,
       fonts::OnFontChanged::kEventName, &args, APIPermission::kFontSettings,
       false, pref_name);
 }
 
 void FontSettingsEventRouter::OnFontPrefChanged(
     events::HistogramValue histogram_value,
     const std::string& event_name,
     const std::string& key,
     const std::string& pref_name) {
   const PrefService::Preference* pref = registrar_.prefs()->FindPreference(
       pref_name);
   CHECK(pref);
 
   base::ListValue args;
-  base::DictionaryValue* dict = new base::DictionaryValue();
-  args.Append(dict);
+  std::unique_ptr<base::DictionaryValue> dict(new base::DictionaryValue());
   dict->Set(key, pref->GetValue()->DeepCopy());
+  args.Append(std::move(dict));
 
   extensions::preference_helpers::DispatchEventToExtensions(
       profile_, histogram_value, event_name, &args,
       APIPermission::kFontSettings, false, pref_name);
 }
 
 FontSettingsAPI::FontSettingsAPI(content::BrowserContext* context)
     : font_settings_event_router_(
           new FontSettingsEventRouter(Profile::FromBrowserContext(context))) {}
 
@@ skipping 228 matching lines @@
 
 const char* FontSettingsSetMinimumFontSizeFunction::GetPrefName() {
   return prefs::kWebKitMinimumFontSize;
 }
 
 const char* FontSettingsSetMinimumFontSizeFunction::GetKey() {
   return kPixelSizeKey;
 }
 
 }  // namespace extensions