Move WriteFile and WriteFileDescriptor from file_util to base namespace.

net/disk_cache/blockfile/block_files_unittest.cc

 // 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.
 
 #include "base/file_util.h"
 #include "base/files/file_enumerator.h"
 #include "net/disk_cache/blockfile/block_files.h"
 #include "net/disk_cache/disk_cache.h"
 #include "net/disk_cache/disk_cache_test_base.h"
 #include "net/disk_cache/disk_cache_test_util.h"
@@ skipping 252 matching lines @@
 
   // Let's access block 10 of file 5. (There is no file).
   Addr addr(BLOCK_256, 1, 5, 10);
   EXPECT_TRUE(NULL == files.GetFile(addr));
 
   // Let's create an invalid file.
   base::FilePath filename(files.Name(5));
   char header[kBlockHeaderSize];
   memset(header, 'a', kBlockHeaderSize);
   EXPECT_EQ(kBlockHeaderSize,
-            file_util::WriteFile(filename, header, kBlockHeaderSize));
+            base::WriteFile(filename, header, kBlockHeaderSize));
 
   EXPECT_TRUE(NULL == files.GetFile(addr));
 
   // The file should not have been changed (it is still invalid).
   EXPECT_TRUE(NULL == files.GetFile(addr));
 }
 
 // Tests that we generate the correct file stats.
 TEST_F(DiskCacheTest, BlockFiles_Stats) {
   ASSERT_TRUE(CopyTestCache("remove_load1"));
@@ skipping 57 matching lines @@
   }
 
   // The allocation map should be empty.
   for (int i =0; i < 50; i++) {
     SCOPED_TRACE(i);
     EXPECT_EQ(0, buffer[i]);
   }
 }
 
 }  // namespace disk_cache