Delete the omahaproxy-backed extension blacklist and clear its entries from the

chrome/browser/extensions/extension_disabled_ui_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 "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/run_loop.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/extensions/extension_browsertest.h"
@@ skipping 187 matching lines @@
   net::URLFetcher::SetEnableInterceptionForTests(true);
   interceptor.SetResponseIgnoreQuery(
       GURL("http://localhost/autoupdate/updates.xml"),
       test_data_dir_.AppendASCII("permissions_increase")
                     .AppendASCII("updates.xml"));
   interceptor.SetResponseIgnoreQuery(
       GURL("http://localhost/autoupdate/v2.crx"),
       scoped_temp_dir_.path().AppendASCII("permissions2.crx"));
 
   extensions::ExtensionUpdater::CheckParams params;
-  params.check_blacklist = false;
   service_->updater()->set_default_check_params(params);
 
   // Sync is replacing an older version, so it pends.
   EXPECT_FALSE(service_->ProcessExtensionSyncData(sync_data));
 
   WaitForExtensionInstall();
   content::BrowserThread::GetBlockingPool()->FlushForTesting();
   base::RunLoop().RunUntilIdle();
 
   extension = service_->GetExtensionById(extension_id, true);
   ASSERT_TRUE(extension);
   EXPECT_EQ("2", extension->VersionString());
   EXPECT_EQ(1u, service_->disabled_extensions()->size());
   EXPECT_EQ(Extension::DISABLE_PERMISSIONS_INCREASE,
             service_->extension_prefs()->GetDisableReasons(extension_id));
   EXPECT_TRUE(GetExtensionDisabledGlobalError());
 }