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

chrome/browser/media_galleries/media_galleries_preferences.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/media_galleries/media_galleries_preferences.h"
 
 #include <stddef.h>
 
+#include <memory>
+#include <utility>
+
 #include "base/base_paths_posix.h"
 #include "base/callback.h"
 #include "base/i18n/time_formatting.h"
 #include "base/macros.h"
 #include "base/path_service.h"
 #include "base/stl_util.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
@@ skipping 1324 matching lines @@
         if (has_access != perm.has_permission) {
           dict->SetBoolean(kMediaGalleryHasPermissionKey, has_access);
           return true;
         } else {
           return false;
         }
       }
     }
   }
   // ...Otherwise, add a new entry for the gallery.
-  base::DictionaryValue* dict = new base::DictionaryValue;
+  std::unique_ptr<base::DictionaryValue> dict(new base::DictionaryValue);
   dict->SetString(kMediaGalleryIdKey, base::Uint64ToString(gallery_id));
   dict->SetBoolean(kMediaGalleryHasPermissionKey, has_access);
-  permissions->Append(dict);
+  permissions->Append(std::move(dict));
   return true;
 }
 
 bool MediaGalleriesPreferences::UnsetGalleryPermissionInPrefs(
     const std::string& extension_id,
     MediaGalleryPrefId gallery_id) {
   DCHECK(IsInitialized());
   ExtensionPrefs::ScopedListUpdate update(GetExtensionPrefs(),
                                           extension_id,
                                           kMediaGalleriesPermissions);
@@ skipping 67 matching lines @@
   if (extension_prefs_for_testing_)
     return extension_prefs_for_testing_;
   return extensions::ExtensionPrefs::Get(profile_);
 }
 
 void MediaGalleriesPreferences::SetExtensionPrefsForTesting(
     extensions::ExtensionPrefs* extension_prefs) {
   DCHECK(IsInitialized());
   extension_prefs_for_testing_ = extension_prefs;
 }