[Reland] Enable AutoResize for Constrained Web Dialogs for Mac.

chrome/browser/ui/cocoa/content_settings/collected_cookies_mac.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.
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/mac/scoped_nsobject.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/browsing_data/cookies_tree_model.h"
@@ skipping 29 matching lines @@
   }
 
  private:
   // NotificationObserver implementation.
   void Observe(int type,
                const content::NotificationSource& source,
                const content::NotificationDetails& details) override;
 
   content::NotificationRegistrar registrar_;
 
-  scoped_ptr<ConstrainedWindowMac> window_;
+  std::unique_ptr<ConstrainedWindowMac> window_;
 
   base::scoped_nsobject<CollectedCookiesWindowController> sheet_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(CollectedCookiesMac);
 };
 
 // Controller for the collected cookies dialog. This class stores an internal
 // copy of the CookiesTreeModel but with Cocoa-converted values (NSStrings and
 // NSImages instead of std::strings and ImageSkias). Doing this allows us to use
 // bindings for the interface. Changes are pushed to this internal model via a
@@ skipping 81 matching lines @@
 - (CookiesTreeModel*)allowedTreeModel;
 - (CookiesTreeModel*)blockedTreeModel;
 
 - (void)loadTreeModelFromWebContents;
 
 // Given an array of selected NSTreeNode objects, normalizes the selection so
 // that it does not contain any children whose parents are also in the array.
 + (NSArray*)normalizeNodeSelection:(NSArray*)selection;
 
 @end