AutoFill credit card settings dialog should display obfuscated number in edit field

chrome/browser/autofill/autofill_credit_card_sheet_controller_mac.h

 // Copyright (c) 2010 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_AUTOFILL_AUTOFILL_CREDIT_CARD_SHEET_CONTROLLER_MAC_
 #define CHROME_BROWSER_AUTOFILL_AUTOFILL_CREDIT_CARD_SHEET_CONTROLLER_MAC_
 
 #import <Cocoa/Cocoa.h>
 
 @class AutoFillCreditCardModel;
@@ skipping 15 matching lines @@
 @interface AutoFillCreditCardSheetController : NSWindowController {
  @private
   IBOutlet NSPopUpButton* billingAddressPopup_;
   IBOutlet NSPopUpButton* expirationMonthPopup_;
   IBOutlet NSPopUpButton* expirationYearPopup_;
 
   // The caption at top of dialog.  Text changes according to usage.  Either
   // "New credit card" or "Edit credit card" depending on context.
   IBOutlet NSTextField* caption_;
 
+  // The credit card number field.  This is here for unit testing purposes.
+  // The text of this field is obfuscated until edited.
+  IBOutlet NSTextField* creditCardNumberField_;
+
   // The primary model for this controller.  The model is instantiated
   // from within |initWithCreditCard:|.  We do not hold it as a scoped_nsobject
   // because it is exposed as a KVO compliant property.
   AutoFillCreditCardModel* creditCardModel_;
 
   // Array of strings that populate the |billingAddressPopup_| control.  We
   // do not hold this as scoped_nsobject because it is exposed as a KVO
   // compliant property.  The values of this array may change as the list
   // of addresses change in the |parentController_|.
   NSArray* billingAddressContents_;
@@ skipping 26 matching lines @@
 
 // IBActions for save and cancel buttons.  Both invoke |endSheet:|.
 - (IBAction)save:(id)sender;
 - (IBAction)cancel:(id)sender;
 
 // Copy data from internal model to |creditCard|.
 - (void)copyModelToCreditCard:(CreditCard*)creditCard;
 
 @end
 
+// Interface exposed for unit testing.
+@interface AutoFillCreditCardSheetController (ExposedForUnitTests)
+- (NSTextField*)creditCardNumberField;
+@end
+
 #endif // CHROME_BROWSER_AUTOFILL_AUTOFILL_CREDIT_CARD_SHEET_CONTROLLER_MAC_