Refactor search_engines tests to better reuse code

components/search_engines/default_search_pref_test_util.cc

-// Copyright 2014 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/search_engines/default_search_pref_test_util.h"
-
-#include "base/strings/string_split.h"
-#include "components/search_engines/default_search_manager.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-// static
-std::unique_ptr<base::DictionaryValue>
-DefaultSearchPrefTestUtil::CreateDefaultSearchPreferenceValue(
-    bool enabled,
-    const std::string& name,
-    const std::string& keyword,
-    const std::string& search_url,
-    const std::string& suggest_url,
-    const std::string& icon_url,
-    const std::string& encodings,
-    const std::string& alternate_url,
-    const std::string& search_terms_replacement_key) {
-  std::unique_ptr<base::DictionaryValue> value(new base::DictionaryValue);
-  if (!enabled) {
-    value->SetBoolean(DefaultSearchManager::kDisabledByPolicy, true);
-    return value;
-  }
-
-  EXPECT_FALSE(keyword.empty());
-  EXPECT_FALSE(search_url.empty());
-  value->Set(DefaultSearchManager::kShortName,
-             new base::StringValue(name));
-  value->Set(DefaultSearchManager::kKeyword,
-             new base::StringValue(keyword));
-  value->Set(DefaultSearchManager::kURL,
-             new base::StringValue(search_url));
-  value->Set(DefaultSearchManager::kSuggestionsURL,
-             new base::StringValue(suggest_url));
-  value->Set(DefaultSearchManager::kFaviconURL,
-             new base::StringValue(icon_url));
-  value->Set(DefaultSearchManager::kSearchTermsReplacementKey,
-             new base::StringValue(search_terms_replacement_key));
-
-  std::unique_ptr<base::ListValue> encodings_list(new base::ListValue);
-  for (const std::string& term : base::SplitString(
-           encodings, ";", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL))
-    encodings_list->AppendString(term);
-  value->Set(DefaultSearchManager::kInputEncodings, encodings_list.release());
-
-  std::unique_ptr<base::ListValue> alternate_url_list(new base::ListValue());
-  if (!alternate_url.empty())
-    alternate_url_list->AppendString(alternate_url);
-  value->Set(DefaultSearchManager::kAlternateURLs,
-             alternate_url_list.release());
-  return value;
-}