Always Close the Autofill UI through the same path

chrome/browser/autofill/autofill_external_delegate.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_AUTOFILL_AUTOFILL_EXTERNAL_DELEGATE_H_
 #define CHROME_BROWSER_AUTOFILL_AUTOFILL_EXTERNAL_DELEGATE_H_
 
 #include <vector>
 
 #include "base/compiler_specific.h"
@@ skipping 109 matching lines @@
       const std::vector<int>& autofill_unique_ids);
 
   // Create the popup if it doesn't already exist. |element_bounds| is the
   // bounding rect for the element it is popping up for.
   virtual void EnsurePopupForElement(const gfx::RectF& element_bounds);
 
   content::WebContents* web_contents() { return web_contents_; }
 
   AutofillPopupControllerImpl* controller() { return controller_; }
 
+  // For testing purposes only.
+  void set_controller(base::WeakPtr<AutofillPopupControllerImpl> controller) {
+    controller_ = controller;
+  }
+
  private:
   // Fills the form with the Autofill data corresponding to |unique_id|.
   // If |is_preview| is true then this is just a preview to show the user what
   // would be selected and if |is_preview| is false then the user has selected
   // this data.
   void FillAutofillFormData(int unique_id, bool is_preview);
 
   // Handle applying any Autofill warnings to the Autofill popup.
   void ApplyAutofillWarnings(std::vector<string16>* autofill_values,
                              std::vector<string16>* autofill_labels,
@@ skipping 53 matching lines @@
   // The current data list values.
   std::vector<string16> data_list_values_;
   std::vector<string16> data_list_labels_;
   std::vector<string16> data_list_icons_;
   std::vector<int> data_list_unique_ids_;
 
   DISALLOW_COPY_AND_ASSIGN(AutofillExternalDelegate);
 };
 
 #endif  // CHROME_BROWSER_AUTOFILL_AUTOFILL_EXTERNAL_DELEGATE_H_