Move file_util::Delete to the base namespace

net/disk_cache/cache_util_unittest.cc

 // Copyright (c) 2011 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/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "net/disk_cache/cache_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/platform_test.h"
 
@@ skipping 47 matching lines @@
   EXPECT_FALSE(file_util::PathExists(cache_dir_)); // old cache is gone
 #endif
   EXPECT_FALSE(file_util::PathExists(file1_));
   EXPECT_FALSE(file_util::PathExists(file2_));
   EXPECT_FALSE(file_util::PathExists(dir1_));
 }
 
 TEST_F(CacheUtilTest, DeleteCache) {
   // DeleteCache won't delete subdirs, so let's not start with this
   // one around.
-  file_util::Delete(dir1_, false);
+  base::Delete(dir1_, false);
   disk_cache::DeleteCache(cache_dir_, false);
   EXPECT_TRUE(file_util::PathExists(cache_dir_)); // cache dir stays
   EXPECT_FALSE(file_util::PathExists(file1_));
   EXPECT_FALSE(file_util::PathExists(file2_));
 }
 
 TEST_F(CacheUtilTest, DeleteCacheAndDir) {
   // DeleteCache won't delete subdirs, so let's not start with this
   // one around.
-  file_util::Delete(dir1_, false);
+  base::Delete(dir1_, false);
   disk_cache::DeleteCache(cache_dir_, true);
   EXPECT_FALSE(file_util::PathExists(cache_dir_)); // cache dir is gone
   EXPECT_FALSE(file_util::PathExists(file1_));
   EXPECT_FALSE(file_util::PathExists(file2_));
 }
 
 TEST_F(CacheUtilTest, DeleteCacheFile) {
   EXPECT_TRUE(disk_cache::DeleteCacheFile(file1_));
   EXPECT_FALSE(file_util::PathExists(file1_));
   EXPECT_TRUE(file_util::PathExists(cache_dir_)); // cache dir stays
 }
 
 }  // namespace disk_cache