Move ReadingList model to components/reading_list/core

components/reading_list/ios/offline_url_utils.cc

-// Copyright 2016 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 "components/reading_list/ios/offline_url_utils.h"
-
-#include "base/md5.h"
-#include "base/strings/stringprintf.h"
-
-namespace {
-const char kOfflineDirectory[] = "Offline";
-const char kMainPageFileName[] = "page.html";
-const char kPDFFileName[] = "file.pdf";
-}  // namespace
-
-namespace reading_list {
-
-base::FilePath OfflineRootDirectoryPath(const base::FilePath& profile_path) {
-  return profile_path.Append(FILE_PATH_LITERAL(kOfflineDirectory));
-}
-
-std::string OfflineURLDirectoryID(const GURL& url) {
-  return base::MD5String(url.spec());
-}
-
-base::FilePath OfflineURLDirectoryAbsolutePath(
-    const base::FilePath& profile_path,
-    const GURL& url) {
-  return OfflineURLAbsolutePathFromRelativePath(
-      profile_path, base::FilePath(OfflineURLDirectoryID(url)));
-}
-
-base::FilePath OfflinePagePath(const GURL& url, OfflineFileType type) {
-  base::FilePath directory(OfflineURLDirectoryID(url));
-  switch (type) {
-    case OFFLINE_TYPE_HTML:
-      return directory.Append(FILE_PATH_LITERAL(kMainPageFileName));
-    case OFFLINE_TYPE_PDF:
-      return directory.Append(FILE_PATH_LITERAL(kPDFFileName));
-  }
-}
-
-base::FilePath OfflineURLAbsolutePathFromRelativePath(
-    const base::FilePath& profile_path,
-    const base::FilePath& relative_path) {
-  return OfflineRootDirectoryPath(profile_path).Append(relative_path);
-}
-}