arc: Register ARC content file system

chrome/browser/chromeos/fileapi/external_file_url_util.cc

 // Copyright 2014 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 "chrome/browser/chromeos/fileapi/external_file_url_util.h"
 
 #include <string>
 #include <vector>
 
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/chromeos/file_manager/app_id.h"
 #include "chrome/browser/chromeos/file_manager/fileapi_util.h"
 #include "chrome/browser/extensions/extension_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/storage_partition.h"
 #include "content/public/common/url_constants.h"
 #include "net/base/escape.h"
 #include "storage/browser/fileapi/file_system_url.h"
 
 using content::BrowserThread;
 
 namespace chromeos {
 
 bool IsExternalFileURLType(storage::FileSystemType type) {
   return type == storage::kFileSystemTypeDrive ||
          type == storage::kFileSystemTypeDeviceMediaAsFileStorage ||
-         type == storage::kFileSystemTypeProvided;
+         type == storage::kFileSystemTypeProvided ||
+         type == storage::kFileSystemTypeArcContent;
 }
 
 GURL FileSystemURLToExternalFileURL(
     const storage::FileSystemURL& file_system_url) {
   if (file_system_url.mount_type() != storage::kFileSystemTypeExternal ||
       !IsExternalFileURLType(file_system_url.type())) {
     return GURL();
   }
 
   return VirtualPathToExternalFileURL(file_system_url.virtual_path());
@@ skipping 29 matching lines @@
       file_manager::util::GetFileSystemContextForExtensionId(
           profile, file_manager::kFileManagerAppId)
           ->CrackURL(raw_file_system_url);
   if (!file_system_url.is_valid())
     return GURL();
 
   return FileSystemURLToExternalFileURL(file_system_url);
 }
 
 }  // namespace chromeos