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

chrome/browser/extensions/extension_web_ui.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_EXTENSION_WEB_UI_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_WEB_UI_H_
 
+#include <memory>
 #include <string>
 
-#include "base/memory/scoped_ptr.h"
 #include "chrome/common/extensions/chrome_manifest_url_handlers.h"
 #include "components/favicon_base/favicon_callback.h"
 #include "content/public/browser/web_ui_controller.h"
 
 class Profile;
 
 namespace content {
 class BrowserContext;
 class WebContents;
 }
@@ skipping 66 matching lines @@
  private:
   // Unregister the specified override, and if it's the currently active one,
   // ensure that something takes its place.
   static void UnregisterAndReplaceOverride(const std::string& page,
                                            Profile* profile,
                                            base::ListValue* list,
                                            const base::Value* override);
 
   // TODO(aa): This seems out of place. Why is it not with the event routers for
   // the other extension APIs?
-  scoped_ptr<extensions::BookmarkManagerPrivateDragEventRouter>
+  std::unique_ptr<extensions::BookmarkManagerPrivateDragEventRouter>
       bookmark_manager_private_drag_event_router_;
 
   // The URL this WebUI was created for.
   GURL url_;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_WEB_UI_H_