Add a comment above the disabled test to say which bug

chrome/browser/extensions/extension_updater_unittest.cc

 // Copyright (c) 2009 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 <map>
 
 #include "base/file_util.h"
 #include "base/rand_util.h"
 #include "base/stl_util-inl.h"
 #include "base/string_util.h"
@@ skipping 586 matching lines @@
 }
 
 TEST(ExtensionUpdaterTest, TestMultipleManifestDownloading) {
   ExtensionUpdaterTest::TestMultipleManifestDownloading();
 }
 
 TEST(ExtensionUpdaterTest, TestSingleExtensionDownloading) {
   ExtensionUpdaterTest::TestSingleExtensionDownloading();
 }
 
+// This test is disabled, see bug 26035
 TEST(ExtensionUpdaterTest, DISABLED_TestBlacklistDownloading) {
   ExtensionUpdaterTest::TestBlacklistDownloading();
 }
 
 TEST(ExtensionUpdaterTest, TestMultipleExtensionDownloading) {
   ExtensionUpdaterTest::TestMultipleExtensionDownloading();
 }
 
 
 // TODO(asargent) - (http://crbug.com/12780) add tests for:
 // -prodversionmin (shouldn't update if browser version too old)
 // -manifests & updates arriving out of order / interleaved
 // -Profile::GetDefaultRequestContext() returning null
 //  (should not crash, but just do check later)
 // -malformed update url (empty, file://, has query, has a # fragment, etc.)
 // -An extension gets uninstalled while updates are in progress (so it doesn't
 //  "come back from the dead")
 // -An extension gets manually updated to v3 while we're downloading v2 (ie
 //  you don't get downgraded accidentally)
 // -An update manifest mentions multiple updates