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

chrome/browser/ui/webui/settings/settings_media_devices_selection_handler.cc

 // Copyright 2016 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/ui/webui/settings/settings_media_devices_selection_handler.h"
 
 #include <stddef.h>
 
+#include <memory>
+#include <utility>
+
 #include "base/bind.h"
 #include "base/macros.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/grit/generated_resources.h"
 #include "components/prefs/pref_service.h"
 
 namespace {
 
 const char kAudio[] = "mic";
@@ skipping 91 matching lines @@
     case VIDEO:
       default_device = prefs->GetString(prefs::kDefaultVideoCaptureDevice);
       device_type = kVideo;
       break;
   }
 
   // Build the list of devices to send to JS.
   std::string default_id;
   base::ListValue device_list;
   for (size_t i = 0; i < devices.size(); ++i) {
-    base::DictionaryValue* entry = new base::DictionaryValue();
+    std::unique_ptr<base::DictionaryValue> entry(new base::DictionaryValue());
     entry->SetString("name", devices[i].name);
     entry->SetString("id",  devices[i].id);
-    device_list.Append(entry);
+    device_list.Append(std::move(entry));
     if (devices[i].id == default_device)
       default_id = default_device;
   }
 
   // Use the first device as the default device if the preferred default device
   // does not exist in the OS.
   if (!devices.empty() && default_id.empty())
     default_id = devices[0].id;
 
   base::StringValue default_value(default_id);
@@ skipping 15 matching lines @@
     case VIDEO:
       devices = MediaCaptureDevicesDispatcher::GetInstance()->
           GetVideoCaptureDevices();
       break;
   }
 
   UpdateDevicesMenu(type, devices);
 }
 
 }  // namespace settings