Reorganize net/disk_cache into backend specific directories.

net/disk_cache/mapped_file.cc

-// Copyright 2013 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 "net/disk_cache/mapped_file.h"
-
-namespace disk_cache {
-
-// Note: Most of this class is implemented in platform-specific files.
-
-bool MappedFile::Load(const FileBlock* block) {
-  size_t offset = block->offset() + view_size_;
-  return Read(block->buffer(), block->size(), offset);
-}
-
-bool MappedFile::Store(const FileBlock* block) {
-  size_t offset = block->offset() + view_size_;
-  return Write(block->buffer(), block->size(), offset);
-}
-
-bool MappedFile::Load(const FileBlock* block,
-                      FileIOCallback* callback,
-                      bool* completed) {
-  size_t offset = block->offset() + view_size_;
-  return Read(block->buffer(), block->size(), offset, callback, completed);
-}
-
-bool MappedFile::Store(const FileBlock* block,
-                       FileIOCallback* callback,
-                       bool* completed) {
-  size_t offset = block->offset() + view_size_;
-  return Write(block->buffer(), block->size(), offset, callback, completed);
-}
-
-}  // namespace disk_cache