kiosk: Ensure launching latest version.

chrome/browser/extensions/external_policy_loader_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 <set>
 #include <string>
 
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/values.h"
@@ skipping 56 matching lines @@
     expected_extensions_ = expected_extensions;
     provider_->VisitRegisteredExtension();
     EXPECT_TRUE(expected_extensions_.empty());
   }
 
   bool OnExternalExtensionFileFound(const std::string& id,
                                     const Version* version,
                                     const base::FilePath& path,
                                     Manifest::Location unused,
                                     int unused2,
-                                    bool unused3) override {
+                                    bool unused3,
+                                    bool unused4) override {
     ADD_FAILURE() << "There should be no external extensions from files.";
     return false;
   }
 
   bool OnExternalExtensionUpdateUrlFound(const std::string& id,
                                          const std::string& install_parameter,
                                          const GURL& update_url,
                                          Manifest::Location location,
                                          int unused1,
                                          bool unused2) override {
@@ skipping 57 matching lines @@
   forced_extensions.SetString("invalid", "http://www.example.com/crx");
   forced_extensions.SetString("dddddddddddddddddddddddddddddddd",
                               std::string());
   forced_extensions.SetString("invalid", "bad");
 
   MockExternalPolicyProviderVisitor mv;
   mv.Visit(forced_extensions, expected_extensions);
 }
 
 }  // namespace extensions