[rAC] Allow sub-views to trigger layout reflow.

chrome/browser/ui/cocoa/autofill/autofill_details_container.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_COCOA_AUTOFILL_AUTOFILL_DETAILS_CONTAINER_H_
 #define CHROME_BROWSER_UI_COCOA_AUTOFILL_AUTOFILL_DETAILS_CONTAINER_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/memory/scoped_nsobject.h"
 #include "chrome/browser/ui/autofill/autofill_dialog_types.h"
 
 namespace autofill {
 class AutofillDialogController;
 }
 
 @class AutofillSectionContainer;
 
 // UI controller for details for current payment instrument.
 @interface AutofillDetailsContainer : NSViewController {
  @private
   scoped_nsobject<NSMutableArray> details_;  // The individual detail sections.
   autofill::AutofillDialogController* controller_;  // Not owned.
 }
 
 // Designated initializer.
 - (id)initWithController:(autofill::AutofillDialogController*)controller;
 
+// Determine preferred size for content.
+- (NSSize)preferredSize;
+
+// Layout contents according to preferredSize;
+- (void)performLayout;
+
 // Retrieve the container for the specified |section|.
 - (AutofillSectionContainer*)sectionForId:(autofill::DialogSection)section;
 
 // Called when the controller-maintained suggestions model has changed.
 - (void)modelChanged;
 
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_AUTOFILL_AUTOFILL_DETAILS_CONTAINER_H_