requestAutocomplete (desktop): don't get stuck in infinite loop

chrome/browser/ui/cocoa/autofill/autofill_sign_in_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_SIGN_IN_CONTAINER_H_
 #define CHROME_BROWSER_UI_COCOA_AUTOFILL_AUTOFILL_SIGN_IN_CONTAINER_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/memory/scoped_ptr.h"
 
+class GURL;
+
 namespace autofill {
 class AutofillDialogCocoa;
 class AutofillDialogSignInDelegate;
 }
 
 namespace content {
 class WebContents;
 class NavigationController;
 }
 
 // Controls the sign-in dialog of the AutofillDialog.
 @interface AutofillSignInContainer : NSViewController {
  @private
   autofill::AutofillDialogCocoa* dialog_;  // Not owned.
   scoped_ptr<content::WebContents> webContents_;
   scoped_ptr<autofill::AutofillDialogSignInDelegate> signInDelegate_;
 
   // The minimum and maximum sizes for the web view.
   NSSize maxSize_;
   NSSize minSize_;
 
   // The preferred size for this view, including both the web view and the
   // bottom padding.
   NSSize preferredSize_;
 }
 
 @property(assign, nonatomic) NSSize preferredSize;
 
 - (id)initWithDialog:(autofill::AutofillDialogCocoa*)dialog;
-- (void)loadSignInPage;
+- (void)loadSignInPage:(const GURL&)url;
 - (content::NavigationController*)navigationController;
 - (void)constrainSizeToMinimum:(NSSize)minSize maximum:(NSSize)maximum;
 - (content::WebContents*)webContents;
 
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_AUTOFILL_AUTOFILL_SIGN_IN_CONTAINER_H_