Inject CanAddURLToHistory into TopSitesImpl

components/history/core/test/database_test_utils.cc

 // Copyright 2015 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/history/core/test/database_test_utils.h"
 
 #include "base/files/file_path.h"
 #include "base/path_service.h"
 #include "sql/test/test_helpers.h"
 
 namespace history {
 
-namespace {
-
 WARN_UNUSED_RESULT bool GetTestDataHistoryDir(base::FilePath* dir) {
   if (!PathService::Get(base::DIR_SOURCE_ROOT, dir))
     return false;
   *dir = dir->AppendASCII("components");
   *dir = dir->AppendASCII("test");
   *dir = dir->AppendASCII("data");
   *dir = dir->AppendASCII("history");
   return true;
 }
 
-}  // namespace
-
 WARN_UNUSED_RESULT bool CreateDatabaseFromSQL(const base::FilePath& db_path,
                                               const char* ascii_path) {
   base::FilePath dir;
   if (!GetTestDataHistoryDir(&dir))
     return false;
   return sql::test::CreateDatabaseFromSQL(db_path, dir.AppendASCII(ascii_path));
 }
 
 }  // namespace history