Cleanup: Use base/files/file_util.h instead of base/file_util.h in apps/ and extensions/

extensions/browser/computed_hashes.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 "extensions/browser/computed_hashes.h"
 
 #include "base/base64.h"
-#include "base/file_util.h"
 #include "base/files/file_path.h"
+#include "base/files/file_util.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/stl_util.h"
 #include "base/values.h"
 #include "crypto/secure_hash.h"
 #include "crypto/sha2.h"
 
 namespace {
 const char kBlockHashesKey[] = "block_hashes";
 const char kBlockSizeKey[] = "block_size";
@@ skipping 153 matching lines @@
 
     // If |contents| is empty, then we want to just exit here.
     if (bytes_to_read == 0)
       break;
 
     offset += bytes_to_read;
   } while (offset < contents.size());
 }
 
 }  // namespace extensions