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

ui/base/resource/data_pack.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 "ui/base/resource/data_pack.h"
 
 #include <errno.h>
 
 #include "base/file_util.h"
+#include "base/files/memory_mapped_file.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/metrics/histogram.h"
 #include "base/string_piece.h"
 
 // For details of the file layout, see
 // http://dev.chromium.org/developers/design-documents/linuxresourcesandlocalizedstrings
 
 namespace {
 
@@ skipping 45 matching lines @@
 DataPack::DataPack(ui::ScaleFactor scale_factor)
     : resource_count_(0),
       text_encoding_type_(BINARY),
       scale_factor_(scale_factor) {
 }
 
 DataPack::~DataPack() {
 }
 
 bool DataPack::LoadFromPath(const base::FilePath& path) {
-  mmap_.reset(new file_util::MemoryMappedFile);
+  mmap_.reset(new base::MemoryMappedFile);
   if (!mmap_->Initialize(path)) {
     DLOG(ERROR) << "Failed to mmap datapack";
     UMA_HISTOGRAM_ENUMERATION("DataPack.Load", INIT_FAILED,
                               LOAD_ERRORS_COUNT);
     mmap_.reset();
     return false;
   }
   return LoadImpl();
 }
 
 bool DataPack::LoadFromFile(base::PlatformFile file) {
-  mmap_.reset(new file_util::MemoryMappedFile);
+  mmap_.reset(new base::MemoryMappedFile);
   if (!mmap_->Initialize(file)) {
     DLOG(ERROR) << "Failed to mmap datapack";
     UMA_HISTOGRAM_ENUMERATION("DataPack.Load", INIT_FAILED_FROM_FILE,
                               LOAD_ERRORS_COUNT);
     mmap_.reset();
     return false;
   }
   return LoadImpl();
 }
 
@@ skipping 198 matching lines @@
       return false;
     }
   }
 
   file_util::CloseFile(file);
 
   return true;
 }
 
 }  // namespace ui