Move WriteFile and WriteFileDescriptor from file_util to base namespace.

base/mac/mac_util_unittest.mm

 // 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.
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/mac/mac_util.h"
 
 #include "base/file_util.h"
 #include "base/files/file_path.h"
@@ skipping 90 matching lines @@
 }
 
 TEST_F(MacUtilTest, TestExcludeFileFromBackups) {
   // The file must already exist in order to set its exclusion property.
   ScopedTempDir temp_dir_;
   ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
   FilePath dummy_file_path = temp_dir_.path().Append("DummyFile");
   const char dummy_data[] = "All your base are belong to us!";
   // Dump something real into the file.
   ASSERT_EQ(static_cast<int>(arraysize(dummy_data)),
-      file_util::WriteFile(dummy_file_path, dummy_data, arraysize(dummy_data)));
+            WriteFile(dummy_file_path, dummy_data, arraysize(dummy_data)));
   NSString* fileURLString =
       [NSString stringWithUTF8String:dummy_file_path.value().c_str()];
   NSURL* fileURL = [NSURL URLWithString:fileURLString];
   // Initial state should be non-excluded.
   EXPECT_FALSE(CSBackupIsItemExcluded(base::mac::NSToCFCast(fileURL), NULL));
   // Exclude the file.
   EXPECT_TRUE(SetFileBackupExclusion(dummy_file_path));
   // SetFileBackupExclusion never excludes by path.
   Boolean excluded_by_path = FALSE;
   Boolean excluded =
@@ skipping 131 matching lines @@
   ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
   FilePath non_existent_path = temp_dir_.path().Append("DummyPath");
   ASSERT_FALSE(PathExists(non_existent_path));
   EXPECT_FALSE(RemoveQuarantineAttribute(non_existent_path));
 }
 
 }  // namespace
 
 }  // namespace mac
 }  // namespace base