Change base/file_utils.h includes to base/files/file_utils.h in net/

net/spdy/fuzzing/hpack_fuzz_mutator.cc

 // Copyright 2014 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/command_line.h"
-#include "base/file_util.h"
 #include "base/files/file.h"
+#include "base/files/file_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "net/spdy/fuzzing/hpack_fuzz_util.h"
 
 namespace {
 
 // Specifies a file having HPACK header sets.
 const char kFileToParse[] = "file-to-parse";
 
 // Target file for mutated HPACK header sets.
 const char kFileToWrite[] = "file-to-write";
@@ skipping 54 matching lines @@
     string prefix = HpackFuzzUtil::HeaderBlockPrefix(block.size());
 
     CHECK_LT(0, file_out.WriteAtCurrentPos(prefix.data(), prefix.size()));
     CHECK_LT(0, file_out.WriteAtCurrentPos(block.data(), block.size()));
     ++block_count;
   }
   CHECK(file_out.Flush());
   DVLOG(1) << "Mutated " << block_count << " blocks.";
   return 0;
 }