Add support for transparent background API

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/strings/utf_string_conversions.h"
 #include "chrome/common/chrome_paths.h"
@@ skipping 624 matching lines @@
 TEST(PermissionsTest, PermissionMessages) {
   // Ensure that all permissions that needs to show install UI actually have
   // strings associated with them.
   APIPermissionSet skip;
 
   // These are considered "nuisance" or "trivial" permissions that don't need
   // a prompt.
   skip.insert(APIPermission::kActiveTab);
   skip.insert(APIPermission::kAdView);
   skip.insert(APIPermission::kAlarms);
+  skip.insert(APIPermission::kAlphaEnabled);
   skip.insert(APIPermission::kAlwaysOnTopWindows);
   skip.insert(APIPermission::kAudio);
   skip.insert(APIPermission::kBrowsingData);
   skip.insert(APIPermission::kCastStreaming);
   skip.insert(APIPermission::kContextMenus);
   skip.insert(APIPermission::kDiagnostics);
   skip.insert(APIPermission::kDns);
   skip.insert(APIPermission::kDownloadsShelf);
   skip.insert(APIPermission::kFontSettings);
   skip.insert(APIPermission::kFullscreen);
@@ skipping 910 matching lines @@
   scoped_refptr<const PermissionSet> permissions_dwr(
       extension_dwr->GetActivePermissions());
 
   EXPECT_FALSE(PermissionMessageProvider::Get()->
                    IsPrivilegeIncrease(permissions.get(),
                                        permissions_dwr.get(),
                                        extension->GetType()));
 }
 
 }  // namespace extensions