Stop prompting for the file system write permission in packaged apps.

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 "extensions/common/permissions/api_permission.h"
 #include "extensions/common/permissions/api_permission_set.h"
 #include "extensions/common/permissions/media_galleries_permission.h"
 #include "extensions/common/permissions/permission_message.h"
@@ skipping 313 matching lines @@
         // 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::kFileSystemProvider, "fileSystemProvider"},
         {APIPermission::kFileSystemRetainEntries, "fileSystem.retainEntries"},
-        {APIPermission::kFileSystemWrite, "fileSystem.write",
-         APIPermissionInfo::kFlagNone,
-         IDS_EXTENSION_PROMPT_WARNING_FILE_SYSTEM_WRITE,
-         PermissionMessage::kFileSystemWrite},
+        {APIPermission::kFileSystemWrite, "fileSystem.write"},
         {APIPermission::kFileSystemWriteDirectory, "fileSystem.writeDirectory",
          APIPermissionInfo::kFlagNone,
          IDS_EXTENSION_PROMPT_WARNING_FILE_SYSTEM_WRITE_DIRECTORY,
          PermissionMessage::kFileSystemWriteDirectory},
         {APIPermission::kHid, "hid", APIPermissionInfo::kFlagNone,
          IDS_EXTENSION_PROMPT_WARNING_HID, PermissionMessage::kHid},
         // Because warning messages for the "mediaGalleries" permission vary
         // based
         // on the permissions parameters, no message ID or message text is
         // specified here.
@@ skipping 68 matching lines @@
       PermissionsProvider::AliasInfo("app.window.fullscreen.overrideEsc",
                                      kOldOverrideEscFullscreenPermission));
   aliases.push_back(PermissionsProvider::AliasInfo(
       "unlimitedStorage", kOldUnlimitedStoragePermission));
   aliases.push_back(PermissionsProvider::AliasInfo(
       "tabs", kWindowsPermission));
   return aliases;
 }
 
 }  // namespace extensions