[Password Generation] Update UI to match final mocks.

chrome/browser/ui/autofill/password_generation_popup_view.h

 // Copyright 2014 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_AUTOFILL_PASSWORD_GENERATION_POPUP_VIEW_H_
 #define CHROME_BROWSER_UI_AUTOFILL_PASSWORD_GENERATION_POPUP_VIEW_H_
 
 namespace autofill {
 
 class PasswordGenerationPopupController;
 
 // Interface for creating and controlling a platform dependent view.
 class PasswordGenerationPopupView {
  public:
   virtual void Show() = 0;
 
   // This will cause the popup to be deleted.
   virtual void Hide() = 0;
 
   // Updates layout information from the controller.
   virtual void UpdateBoundsAndRedrawPopup() = 0;
 
+  // Called when the password selection state has changed.
+  virtual void PasswordSelectionUpdated() = 0;
+
   // Note that PasswordGenerationPopupView owns itself, and will only be deleted
   // when Hide() is called.
   static PasswordGenerationPopupView* Create(
       PasswordGenerationPopupController* controller);
 };
 
 }  // namespace autofill
 
 #endif  // CHROME_BROWSER_UI_AUTOFILL_PASSWORD_GENERATION_POPUP_VIEW_H_