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

chrome/browser/ui/cocoa/autofill/layout_view.mm

 // Copyright (c) 2013 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 "chrome/browser/ui/cocoa/autofill/layout_view.h"
 
 #include <utility>
 
 #include "chrome/browser/ui/cocoa/autofill/simple_grid_layout.h"
 
 @implementation LayoutView
 
-- (void)setLayoutManager:(scoped_ptr<SimpleGridLayout>)layout {
+- (void)setLayoutManager:(std::unique_ptr<SimpleGridLayout>)layout {
   layout_ = std::move(layout);
 }
 
 - (SimpleGridLayout*)layoutManager {
   return layout_.get();
 }
 
 - (void)resizeSubviewsWithOldSize:(NSSize)oldBoundsSize {
   [super resizeSubviewsWithOldSize:oldBoundsSize];
   [self performLayout];
 }
 
 - (void)performLayout {
   layout_->Layout(self);
 }
 
 - (CGFloat)preferredHeightForWidth:(CGFloat)width {
   return layout_->GetPreferredHeightForWidth(width);
 }
 
 @end