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

chrome/browser/ui/browser_instant_controller.h

 // Copyright 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_BROWSER_INSTANT_CONTROLLER_H_
 #define CHROME_BROWSER_UI_BROWSER_INSTANT_CONTROLLER_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "chrome/browser/search/instant_service_observer.h"
@@ skipping 38 matching lines @@
   void ModelChanged(const SearchModel::State& old_state,
                     const SearchModel::State& new_state) override;
 
   // InstantServiceObserver:
   void DefaultSearchProviderChanged(
       bool google_base_url_domain_changed) override;
 
   // Replaces the contents at tab |index| with |new_contents| and deletes the
   // existing contents.
   void ReplaceWebContentsAt(int index,
-                            scoped_ptr<content::WebContents> new_contents);
+                            std::unique_ptr<content::WebContents> new_contents);
 
   Browser* const browser_;
 
   InstantController instant_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserInstantController);
 };
 
 #endif  // CHROME_BROWSER_UI_BROWSER_INSTANT_CONTROLLER_H_