Rewrite simple uses of base::ListValue::Append(base::Value*) on CrOS.

chrome/browser/ui/webui/chromeos/login/user_image_screen_handler.cc

 // Copyright (c) 2013 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/chromeos/login/user_image_screen_handler.h"
 
+#include <utility>
+
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/accessibility/accessibility_manager.h"
 #include "chrome/browser/chromeos/login/existing_user_controller.h"
 #include "chrome/browser/chromeos/login/screens/user_image_model.h"
 #include "chrome/browser/chromeos/login/ui/webui_login_display.h"
 #include "chrome/browser/chromeos/login/users/default_user_image/default_user_images.h"
 #include "chrome/browser/ui/webui/chromeos/login/oobe_screen.h"
@@ skipping 120 matching lines @@
         new base::DictionaryValue);
     image_data->SetString("url", default_user_image::GetDefaultImageUrl(i));
     image_data->SetString("author",
                           l10n_util::GetStringUTF16(
                               default_user_image::kDefaultImageAuthorIDs[i]));
     image_data->SetString("website",
                           l10n_util::GetStringUTF16(
                               default_user_image::kDefaultImageWebsiteIDs[i]));
     image_data->SetString("title",
                           default_user_image::GetDefaultImageDescription(i));
-    image_urls.Append(image_data.release());
+    image_urls.Append(std::move(image_data));
   }
   CallJS("setDefaultImages", image_urls);
 }
 
 void UserImageScreenHandler::HandleScreenReady() {
   is_ready_ = true;
   if (model_)
     model_->OnScreenReady();
 }
 
@@ skipping 35 matching lines @@
   base::TimeDelta delta = base::Time::Now() - screen_show_time_;
   VLOG(1) << "Screen load time: " << delta.InSecondsF();
   UMA_HISTOGRAM_TIMES("UserImage.ScreenIsShownTime", delta);
 }
 
 void UserImageScreenHandler::HideCurtain() {
   CallJS("hideCurtain");
 }
 
 }  // namespace chromeos