Remove use of deprecated base::ListValue::Append(Value*) overload in extensions.

chrome/browser/extensions/api/screenlock_private/screenlock_private_api.h

 // Copyright 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_SCREENLOCK_PRIVATE_SCREENLOCK_PRIVATE_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_SCREENLOCK_PRIVATE_SCREENLOCK_PRIVATE_API_H_
 
+#include <memory>
 #include <string>
 
 #include "base/macros.h"
 #include "chrome/browser/extensions/chrome_extension_function.h"
 #include "components/proximity_auth/screenlock_bridge.h"
 #include "extensions/browser/browser_context_keyed_api_factory.h"
 #include "extensions/browser/extension_event_histogram_value.h"
 
 namespace extensions {
 
@@ skipping 63 matching lines @@
 
   // BrowserContextKeyedAPI
   static const char* service_name() {
     return "ScreenlockPrivateEventRouter";
   }
   static const bool kServiceIsNULLWhileTesting = true;
   static const bool kServiceRedirectedInIncognito = true;
 
   void DispatchEvent(events::HistogramValue histogram_value,
                      const std::string& event_name,
-                     base::Value* arg);
+                     std::unique_ptr<base::Value> arg);
 
   content::BrowserContext* browser_context_;
   DISALLOW_COPY_AND_ASSIGN(ScreenlockPrivateEventRouter);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SCREENLOCK_PRIVATE_SCREENLOCK_PRIVATE_API_H_