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

chrome/browser/ui/cocoa/constrained_web_dialog_delegate_mac.mm

 // 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.
 
 #include "chrome/browser/ui/webui/constrained_web_dialog_delegate_base.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/mac/scoped_nsobject.h"
 #include "base/macros.h"
@@ skipping 162 matching lines @@
         GetWebContents()->GetRenderViewHost();
     render_view_host->EnableAutoResize(min_size_, max_size_);
   }
 
   // Whether or not the dialog is autoresizable is determined based on whether
   // |max_size_| was specified.
   bool IsDialogAutoResizable() {
     return !max_size_.IsEmpty();
   }
 
-  scoped_ptr<ConstrainedWebDialogDelegateMac> impl_;
-  scoped_ptr<ConstrainedWindowMac> constrained_window_;
+  std::unique_ptr<ConstrainedWebDialogDelegateMac> impl_;
+  std::unique_ptr<ConstrainedWindowMac> constrained_window_;
   base::scoped_nsobject<NSWindow> window_;
 
   // Minimum and maximum sizes to determine dialog bounds for auto-resizing.
   const gfx::Size min_size_;
   const gfx::Size max_size_;
 
   DISALLOW_COPY_AND_ASSIGN(ConstrainedWebDialogDelegateViewMac);
 };
 
 ConstrainedWebDialogDelegateViewMac::ConstrainedWebDialogDelegateViewMac(
@@ skipping 60 matching lines @@
     const gfx::Size& max_size) {
   DCHECK(!min_size.IsEmpty());
   DCHECK(!max_size.IsEmpty());
   // Deleted when the dialog closes.
   ConstrainedWebDialogDelegateViewMac* constrained_delegate =
       new ConstrainedWebDialogDelegateViewMac(
           browser_context, delegate, web_contents,
           min_size, max_size);
   return constrained_delegate;
 }