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

chrome/browser/ui/autofill/autofill_dialog_controller_unittest.cc

 // 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.
 
 #include <map>
 #include <utility>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 192 matching lines @@
       override {
     *output = outputs_[section];
   }
 
   virtual base::string16 GetCvc() override { return base::string16(); }
 
   virtual bool SaveDetailsLocally() override {
     return save_details_locally_checked_;
   }
 
-  virtual const content::NavigationController* ShowSignIn() override {
+  virtual const content::NavigationController* ShowSignIn(const GURL& url)
+      override {
     return NULL;
   }
   virtual void HideSignIn() override {}
 
   MOCK_METHOD0(ModelChanged, void());
   MOCK_METHOD0(UpdateForErrors, void());
 
   virtual void OnSignInResize(const gfx::Size& pref_size) override {}
   virtual void ValidateSection(DialogSection) override {}
 
@@ skipping 3437 matching lines @@
   EXPECT_EQ(ASCIIToUTF16("United States"), form_structure()->field(2)->value);
   EXPECT_EQ(ADDRESS_HOME_COUNTRY,
             form_structure()->field(3)->Type().GetStorableType());
   EXPECT_EQ(ASCIIToUTF16("US"), form_structure()->field(3)->value);
   EXPECT_EQ(ADDRESS_HOME_COUNTRY,
             form_structure()->field(4)->Type().GetStorableType());
   EXPECT_EQ(ASCIIToUTF16("United States"), form_structure()->field(4)->value);
 }
 
 }  // namespace autofill