Don't use deprecated ListValue::Append(Value*) overload.

chrome/browser/ui/webui/ntp/app_launcher_handler.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_NTP_APP_LAUNCHER_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_NTP_APP_LAUNCHER_HANDLER_H_
 
 #include <memory>
 #include <set>
 #include <string>
@@ skipping 65 matching lines @@
       content::BrowserContext* browser_context,
       const extensions::Extension* extension,
       extensions::UnloadedExtensionInfo::Reason reason) override;
   void OnExtensionUninstalled(content::BrowserContext* browser_context,
                               const extensions::Extension* extension,
                               extensions::UninstallReason reason) override;
 
   // Populate the given dictionary with all installed app info.
   void FillAppDictionary(base::DictionaryValue* value);
 
-  // Create a dictionary value for the given extension. May return NULL, e.g. if
-  // the given extension is not an app. If non-NULL, the caller assumes
-  // ownership of the pointer.
-  base::DictionaryValue* GetAppInfo(const extensions::Extension* extension);
+  // Create a dictionary value for the given extension. May return null, e.g. if
+  // the given extension is not an app.
+  std::unique_ptr<base::DictionaryValue> GetAppInfo(
+      const extensions::Extension* extension);
 
   // Populate the given dictionary with the web store promo content.
   void FillPromoDictionary(base::DictionaryValue* value);
 
   // Handles the "launchApp" message with unused |args|.
   void HandleGetApps(const base::ListValue* args);
 
   // Handles the "launchApp" message with |args| containing [extension_id,
   // source] with optional [url, disposition], |disposition| defaulting to
   // CURRENT_TAB.
@@ skipping 129 matching lines @@
   // when the app is added to the page (via getAppsCallback or appAdded).
   std::string highlight_app_id_;
 
   // Used for favicon loading tasks.
   base::CancelableTaskTracker cancelable_task_tracker_;
 
   DISALLOW_COPY_AND_ASSIGN(AppLauncherHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_NTP_APP_LAUNCHER_HANDLER_H_