base: Move MemoryMappedFile out of file_util.h and into its own header file.

media/tools/media_bench/media_bench.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.
 
 // Standalone benchmarking application based on FFmpeg.  This tool is used to
 // measure decoding performance between different FFmpeg compile and run-time
 // options.  We also use this tool to measure performance regressions when
 // testing newer builds of FFmpeg from trunk.
 
 #include <iomanip>
 #include <iostream>
 #include <string>
 
 #include "base/at_exit.h"
 #include "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
+#include "base/files/memory_mapped_file.h"
 #include "base/logging.h"
 #include "base/md5.h"
 #include "base/path_service.h"
 #include "base/string_number_conversions.h"
 #include "base/string_util.h"
 #include "base/time.h"
 #include "base/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "media/base/djb2.h"
 #include "media/base/media.h"
@@ skipping 182 matching lines @@
       skip = 0;
     }
   }
 
   std::ostream* log_out = &std::cout;
 #if defined(ENABLE_WINDOWS_EXCEPTIONS)
   // Catch exceptions so this tool can be used in automated testing.
   __try {
 #endif
 
-  file_util::MemoryMappedFile file_data;
+  base::MemoryMappedFile file_data;
   file_data.Initialize(in_path);
   media::InMemoryUrlProtocol protocol(
       file_data.data(), file_data.length(), false);
 
   // Register FFmpeg and attempt to open file.
   media::FFmpegGlue glue(&protocol);
   if (!glue.OpenContext()) {
     std::cerr << "Error: Could not open input for "
               << in_path.value() << std::endl;
     return 1;
@@ skipping 349 matching lines @@
 #if defined(ENABLE_WINDOWS_EXCEPTIONS)
   } __except(EXCEPTION_EXECUTE_HANDLER) {
     *log_out << "  Exception:" << std::setw(11) << GetExceptionCode()
              << " " << in_path.value() << std::endl;
     return 1;
   }
 #endif
   CommandLine::Reset();
   return 0;
 }