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

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

Index: chrome/browser/ui/webui/ntp/app_launcher_handler.h
diff --git a/chrome/browser/ui/webui/ntp/app_launcher_handler.h b/chrome/browser/ui/webui/ntp/app_launcher_handler.h
index f774923ee6cd7a488fad42e6e3de1096ae9e3cb7..b1ddc870f05610195b0f47856e3836f61647c227 100644
--- a/chrome/browser/ui/webui/ntp/app_launcher_handler.h
+++ b/chrome/browser/ui/webui/ntp/app_launcher_handler.h
@@ -83,10 +83,10 @@ class AppLauncherHandler
   // 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);