Always Close the Autofill UI through the same path

chrome/browser/ui/autofill/autofill_popup_view.h

 // Copyright (c) 2012 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_AUTOFILL_POPUP_VIEW_H_
 #define CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_POPUP_VIEW_H_
 
 #include "ui/gfx/native_widget_types.h"
 
 class AutofillPopupController;
@@ skipping 28 matching lines @@
   // Height of the Autofill icons in pixels.
   static const int kAutofillIconHeight = 16;
 
   // Width of the Autofill icons in pixels.
   static const int kAutofillIconWidth = 25;
 
   // Displays the Autofill popup and fills it in with data from the controller.
   virtual void Show() = 0;
 
   // Hides the popup from view. This will cause the popup to be deleted.
-  virtual void Hide() = 0;
+  // TODO(csharp): Make Hide a pure virtual function again, once hide_call_ is
+  // removed.
+  virtual void Hide();
 
   // Invalidates the given row and redraw it.
   virtual void InvalidateRow(size_t row) = 0;
 
   // Refreshes the position of the popup.
   virtual void UpdateBoundsAndRedrawPopup() = 0;
 
   // Factory function for creating the view.
   static AutofillPopupView* Create(AutofillPopupController* controller);
 
  protected:
-  virtual ~AutofillPopupView() {}
+  AutofillPopupView();
+  virtual ~AutofillPopupView();
+
+ private:
+  // Used to check that the hide function was called, to check that the class
+  // is only destroyed through the Hide function. Remove after Dev channel
+  // release.
+  bool hide_called_;
 };
 
 #endif  // CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_POPUP_VIEW_H_