Convert //chrome/browser/extensions from scoped_ptr to std::unique_ptr

chrome/browser/extensions/navigation_observer.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_EXTENSIONS_NAVIGATION_OBSERVER_H_
 #define CHROME_BROWSER_EXTENSIONS_NAVIGATION_OBSERVER_H_
 
+#include <memory>
 #include <set>
 #include <string>
 
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/extensions/extension_install_prompt.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 class Profile;
 
 namespace content {
 class NavigationController;
 }
@@ skipping 24 matching lines @@
   void PromptToEnableExtensionIfNecessary(
       content::NavigationController* nav_controller);
 
   void OnInstallPromptDone(ExtensionInstallPrompt::Result result);
 
   content::NotificationRegistrar registrar_;
 
   Profile* profile_;
 
   // The UI used to confirm enabling extensions.
-  scoped_ptr<ExtensionInstallPrompt> extension_install_prompt_;
+  std::unique_ptr<ExtensionInstallPrompt> extension_install_prompt_;
 
   // The data we keep track of when prompting to enable extensions.
   std::string in_progress_prompt_extension_id_;
   content::NavigationController* in_progress_prompt_navigation_controller_;
 
   // The extension ids we've already prompted the user about.
   std::set<std::string> prompted_extensions_;
 
   base::WeakPtrFactory<NavigationObserver> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(NavigationObserver);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_NAVIGATION_OBSERVER_H_