Drop |languages| from {Format,Elide}Url* and IDNToUnicode

components/omnibox/browser/shortcuts_backend_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 "components/omnibox/browser/shortcuts_backend.h"
 
 #include <stddef.h>
 
 #include "base/files/scoped_temp_dir.h"
 #include "base/macros.h"
@@ skipping 92 matching lines @@
   data.SetKeyword(base::UTF8ToUTF16("foo"));
 
   TemplateURL* template_url = new TemplateURL(data);
   // Takes ownership of |template_url|.
   template_url_service_->Add(template_url);
   template_url_service_->SetUserSelectedDefaultSearchProvider(template_url);
 }
 
 void ShortcutsBackendTest::SetUp() {
   template_url_service_.reset(new TemplateURLService(nullptr, 0));
-  if (profile_dir_.CreateUniqueTempDir()) {
-    history_service_ =
-        history::CreateHistoryService(profile_dir_.path(), std::string(), true);
-  }
+  if (profile_dir_.CreateUniqueTempDir())
+    history_service_ = history::CreateHistoryService(profile_dir_.path(), true);
   ASSERT_TRUE(history_service_);
 
   db_thread_.Start();
   base::FilePath shortcuts_database_path =
       profile_dir_.path().Append(kShortcutsDatabaseName);
   backend_ = new ShortcutsBackend(
       template_url_service_.get(), make_scoped_ptr(new SearchTermsData()),
       history_service_.get(), db_thread_.task_runner(), shortcuts_database_path,
       false);
   ASSERT_TRUE(backend_.get());
@@ skipping 189 matching lines @@
   ASSERT_TRUE(shortcut4_iter != shortcuts_map().end());
   EXPECT_EQ(shortcut4.id, shortcut4_iter->second.id);
 
   ShortcutsDatabase::ShortcutIDs deleted_ids;
   deleted_ids.push_back(shortcut3.id);
   deleted_ids.push_back(shortcut4.id);
   EXPECT_TRUE(DeleteShortcutsWithIDs(deleted_ids));
 
   ASSERT_EQ(0U, shortcuts_map().size());
 }