Make offline directory name public.

ios/chrome/browser/reading_list/url_downloader.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 "ios/chrome/browser/reading_list/url_downloader.h"
 
 #include <string>
 #include <vector>
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/md5.h"
 #include "base/memory/ptr_util.h"
 #include "base/path_service.h"
 #include "ios/chrome/browser/chrome_paths.h"
 #include "ios/chrome/browser/dom_distiller/distiller_viewer.h"
 #include "ios/web/public/web_thread.h"
 #include "net/base/escape.h"
 #include "url/gurl.h"
 
-namespace {
-char const kOfflineDirectory[] = "Offline";
-}  // namespace
+const char kReadingListOfflineDirectory[] = "Offline";
 
 // URLDownloader
 
 URLDownloader::URLDownloader(
     dom_distiller::DomDistillerService* distiller_service,
     PrefService* prefs,
     base::FilePath chrome_profile_path,
     const DownloadCompletion& download_completion,
     const SuccessCompletion& delete_completion)
     : distiller_service_(distiller_service),
@@ skipping 135 matching lines @@
     const std::string& html) {
   if (CreateOfflineURLDirectory(url)) {
     return SaveHTMLForURL(SaveAndReplaceImagesInHTML(url, html, images), url)
                ? DOWNLOAD_SUCCESS
                : ERROR_PERMANENT;
   }
   return ERROR_PERMANENT;
 }
 
 base::FilePath URLDownloader::OfflineRootDirectoryPath() {
-  return base_directory_.Append(FILE_PATH_LITERAL(kOfflineDirectory));
+  return base_directory_.Append(
+      FILE_PATH_LITERAL(kReadingListOfflineDirectory));
 }
 
 std::string URLDownloader::OfflineURLDirectoryID(const GURL& url) {
   return base::MD5String(url.spec());
 }
 
 base::FilePath URLDownloader::OfflinePagePath(const GURL& url) {
   base::FilePath directory(OfflineURLDirectoryID(url));
   return directory.Append(FILE_PATH_LITERAL("page.html"));
 }
@@ skipping 50 matching lines @@
   return mutable_html;
 }
 
 bool URLDownloader::SaveHTMLForURL(std::string html, const GURL& url) {
   if (html.empty()) {
     return false;
   }
   base::FilePath path = OfflinePageAbsolutePath(url);
   return base::WriteFile(path, html.c_str(), html.length()) > 0;
 }