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

chrome/browser/ui/cocoa/hung_renderer_controller.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_UI_COCOA_HUNG_RENDERER_CONTROLLER_H_
 #define CHROME_BROWSER_UI_COCOA_HUNG_RENDERER_CONTROLLER_H_
 
 // A controller for the Mac hung renderer dialog window.  Only one
 // instance of this controller can exist at any time, although a given
 // controller is destroyed when its window is closed.
@@ skipping 24 matching lines @@
   IBOutlet NSButton* killButton_;
   IBOutlet NSTableView* tableView_;
   IBOutlet NSImageView* imageView_;
   IBOutlet NSTextField* messageView_;
 
   // The WebContents for which this dialog is open.  Should never be
   // NULL while this dialog is open.
   content::WebContents* hungContents_;
 
   // Observes |hungContents_| in case it closes while the panel is up.
-  scoped_ptr<HungRendererWebContentsObserverBridge> hungContentsObserver_;
+  std::unique_ptr<HungRendererWebContentsObserverBridge> hungContentsObserver_;
 
   // Backing data for |tableView_|.  Titles of each WebContents that
   // shares a renderer process with |hungContents_|.
   base::scoped_nsobject<NSArray> hungTitles_;
 
   // Favicons of each WebContents that shares a renderer process with
   // |hungContents_|.
   base::scoped_nsobject<NSArray> hungFavicons_;
 }
 
 // Shows or hides the hung renderer dialog for the given WebContents.
 + (void)showForWebContents:(content::WebContents*)contents;
 + (void)endForWebContents:(content::WebContents*)contents;
 
 // Kills the hung renderers.
 - (IBAction)kill:(id)sender;
 
 // Waits longer for the renderers to respond.
 - (IBAction)wait:(id)sender;
 
 @end  // HungRendererController
 
 
 @interface HungRendererController (JustForTesting)
 - (NSButton*)killButton;
 - (MultiKeyEquivalentButton*)waitButton;
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_HUNG_RENDERER_CONTROLLER_H_