Add support for persistent file access in apps.

chrome/common/extensions/permissions/permission_set_unittest.cc

 // Copyright (c) 2012 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 "base/command_line.h"
 #include "base/json/json_file_value_serializer.h"
 #include "base/logging.h"
 #include "base/path_service.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/common/chrome_paths.h"
@@ skipping 687 matching lines @@
   skip.insert(APIPermission::kWallpaperPrivate);
   skip.insert(APIPermission::kWebRequestInternal);
   skip.insert(APIPermission::kWebSocketProxyPrivate);
   skip.insert(APIPermission::kWebstorePrivate);
 
   // Warned as part of host permissions.
   skip.insert(APIPermission::kDevtools);
 
   // Platform apps.
   skip.insert(APIPermission::kFileSystem);
+  skip.insert(APIPermission::kFileSystemRetainFiles);
   skip.insert(APIPermission::kSocket);
   skip.insert(APIPermission::kUsbDevice);
 
   PermissionsInfo* info = PermissionsInfo::GetInstance();
   APIPermissionSet permissions = info->GetAll();
   for (APIPermissionSet::const_iterator i = permissions.begin();
        i != permissions.end(); ++i) {
     const APIPermissionInfo* permission_info = i->info();
     EXPECT_TRUE(permission_info != NULL);
 
@@ skipping 620 matching lines @@
   APIPermissionSet apis;
   apis.insert(APIPermission::kSyncFileSystem);
   EXPECT_TRUE(extension->is_platform_app());
   EXPECT_TRUE(extension->HasAPIPermission(APIPermission::kSyncFileSystem));
   std::vector<string16> warnings = extension->GetPermissionMessageStrings();
   EXPECT_TRUE(Contains(warnings, "Store data in your Google Drive account"));
   ASSERT_EQ(1u, warnings.size());
 }
 
 }  // namespace extensions