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

chrome/browser/ui/cocoa/autofill/autofill_section_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_SECTION_CONTAINER_H_
 #define CHROME_BROWSER_UI_COCOA_AUTOFILL_AUTOFILL_SECTION_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 LayoutView;
 @class MenuButton;
 @class MenuController;
 
 // View controller for a section of the payment details. Contains a label
 // describing the section as well as associated inputs and controls. Built
 // dynamically based on data retrieved from AutofillDialogController.
 @interface AutofillSectionContainer : NSViewController {
  @private
   scoped_nsobject<LayoutView> inputs_;
   scoped_nsobject<MenuButton> suggestButton_;
+  scoped_nsobject<NSTextField> label_;
+  scoped_nsobject<NSView> view_;  // The view for the container.
+
   scoped_nsobject<MenuController> menuController_;
   autofill::DialogSection section_;
   autofill::AutofillDialogController* controller_;  // Not owned.
 }
 
 @property(readonly, nonatomic) autofill::DialogSection section;
 
 // Designated initializer. Queries |controller| for the list of desired input
 // fields for |section|.
 - (id)initWithController:(autofill::AutofillDialogController*)controller
               forSection:(autofill::DialogSection)section;
 
+// Determine preferred size for content.
+- (NSSize)preferredSize;
+
+// Layout contents according to preferredSize;
+- (void)performLayout;
+
 // Populates |output| with mappings from field identification to input value.
 - (void)getInputs:(autofill::DetailOutputMap*)output;
 
 // Called when the controller-maintained suggestions model has changed.
 - (void)modelChanged;
 
 @end
 
 @interface AutofillSectionContainer (ForTesting)
 - (NSControl*)getField:(autofill::AutofillFieldType)type;
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_AUTOFILL_AUTOFILL_SECTION_CONTAINER_H_