Remove not needed ExtensionUpdater::default_params_ and its setter.

chrome/browser/extensions/api/management/management_browsertest.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 <stddef.h>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
@@ skipping 606 matching lines @@
 #else
 #define MAYBE_PolicyOverridesUserInstall PolicyOverridesUserInstall
 #endif
 
 IN_PROC_BROWSER_TEST_F(ExtensionManagementTest,
                        MAYBE_PolicyOverridesUserInstall) {
   ExtensionService* service = extensions::ExtensionSystem::Get(
       browser()->profile())->extension_service();
   ExtensionRegistry* registry = ExtensionRegistry::Get(browser()->profile());
   const char kExtensionId[] = "ogjcoiohnmldgjemafoockdghcjciccf";
-  extensions::ExtensionUpdater::CheckParams params;
-  service->updater()->set_default_check_params(params);
   const size_t size_before = registry->enabled_extensions().size();
   base::FilePath basedir = test_data_dir_.AppendASCII("autoupdate");
   ASSERT_TRUE(registry->disabled_extensions().is_empty());
 
   // Note: This interceptor gets requests on the IO thread.
   net::LocalHostTestURLRequestInterceptor interceptor(
       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO),
       BrowserThread::GetBlockingPool()->GetTaskRunnerWithShutdownBehavior(
           base::SequencedWorkerPool::SKIP_ON_SHUTDOWN));
 
@@ skipping 77 matching lines @@
   UpdateProviderPolicy(policies);
   extension_observer.WaitForExtensionWillBeInstalled();
 
   ASSERT_EQ(size_before + 1, registry->enabled_extensions().size());
   extension = service->GetExtensionById(kExtensionId, false);
   ASSERT_TRUE(extension);
   EXPECT_EQ(Manifest::EXTERNAL_POLICY_DOWNLOAD, extension->location());
   EXPECT_TRUE(service->IsExtensionEnabled(kExtensionId));
   EXPECT_TRUE(registry->disabled_extensions().is_empty());
 }