Move WriteFile and WriteFileDescriptor from file_util to base namespace.

third_party/zlib/google/zip_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 <set>
 #include <string>
 #include <vector>
 
 #include "base/file_util.h"
 #include "base/files/file.h"
@@ skipping 121 matching lines @@
 
     // Adjusting the current timestamp to the resolution that the zip file
     // supports, which is 2 seconds. Note that between this call to Time::Now()
     // and zip::Zip() the clock can advance a bit, hence the use of EXPECT_GE.
     base::Time::Exploded now_parts;
     base::Time::Now().LocalExplode(&now_parts);
     now_parts.second = now_parts.second & ~1;
     now_parts.millisecond = 0;
     base::Time now_time = base::Time::FromLocalExploded(now_parts);
 
-    EXPECT_EQ(1, file_util::WriteFile(src_file, "1", 1));
+    EXPECT_EQ(1, base::WriteFile(src_file, "1", 1));
     EXPECT_TRUE(base::TouchFile(src_file, base::Time::Now(), test_mtime));
 
     EXPECT_TRUE(zip::Zip(src_dir, zip_file, true));
     ASSERT_TRUE(zip::Unzip(zip_file, out_dir));
 
     base::File::Info file_info;
     EXPECT_TRUE(base::GetFileInfo(out_file, &file_info));
     EXPECT_EQ(file_info.size, 1);
 
     if (valid_year == VALID_YEAR) {
@@ skipping 143 matching lines @@
   for (size_t i = 0; i < zip_file_list_.size(); ++i) {
     EXPECT_TRUE(reader.LocateAndOpenEntry(zip_file_list_[i]));
     // Check the path in the entry just in case.
     const zip::ZipReader::EntryInfo* entry_info = reader.current_entry_info();
     EXPECT_EQ(entry_info->file_path(), zip_file_list_[i]);
   }
 }
 #endif  // defined(OS_POSIX)
 
 }  // namespace