Add support for directory access to the file system API.

chrome/common/extensions/permissions/chrome_api_permissions.cc

 // Copyright (c) 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 "chrome/common/extensions/permissions/chrome_api_permissions.h"
 
 #include "chrome/common/extensions/permissions/api_permission.h"
 #include "chrome/common/extensions/permissions/api_permission_set.h"
 #include "chrome/common/extensions/permissions/bluetooth_permission.h"
 #include "chrome/common/extensions/permissions/media_galleries_permission.h"
@@ skipping 250 matching lines @@
     { APIPermission::kAppRuntime, "app.runtime" },
     { APIPermission::kAppWindow, "app.window" },
     { APIPermission::kAudioCapture, "audioCapture",
       APIPermissionInfo::kFlagNone,
       IDS_EXTENSION_PROMPT_WARNING_AUDIO_CAPTURE,
       PermissionMessage::kAudioCapture },
     { APIPermission::kVideoCapture, "videoCapture",
       APIPermissionInfo::kFlagNone,
       IDS_EXTENSION_PROMPT_WARNING_VIDEO_CAPTURE,
       PermissionMessage::kVideoCapture },
-    // The permission string for "fileSystem" is only shown when "write" is
-    // present. Read-only access is only granted after the user has been shown
-    // a file chooser dialog and selected a file. Selecting the file is
-    // considered consent to read it.
+    // The permission string for "fileSystem" is only shown when "write" or
+    // "directory" is present. Read-only access is only granted after the user
+    // has been shown a file or directory  chooser dialog and selected a file or
+    // directory . Selecting the file or directory  is considered consent to
+    // read it.
     { APIPermission::kFileSystem, "fileSystem" },
+    { APIPermission::kFileSystemDirectory, "fileSystem.directory",
+      APIPermissionInfo::kFlagNone,
+      IDS_EXTENSION_PROMPT_WARNING_FILE_SYSTEM_DIRECTORY,
+      PermissionMessage::kFileSystemDirectory },
     { APIPermission::kFileSystemRetainEntries, "fileSystem.retainEntries" },
     { APIPermission::kFileSystemWrite, "fileSystem.write",
       APIPermissionInfo::kFlagNone,
       IDS_EXTENSION_PROMPT_WARNING_FILE_SYSTEM_WRITE,
       PermissionMessage::kFileSystemWrite },
     // Because warning messages for the "mediaGalleries" permission vary based
     // on the permissions parameters, no message ID or message text is
     // specified here.
     // The message ID and text used will be determined at run-time in the
     // |MediaGalleriesPermission| class.
@@ skipping 47 matching lines @@
   // Register aliases.
   std::vector<PermissionsProvider::AliasInfo> aliases;
   aliases.push_back(PermissionsProvider::AliasInfo(
       "unlimitedStorage", kOldUnlimitedStoragePermission));
   aliases.push_back(PermissionsProvider::AliasInfo(
       "tabs", kWindowsPermission));
   return aliases;
 }
 
 }  // namespace extensions