Try renabling IndexedDBLayoutTest.RegressionTests now that those tests run under content_browsertes…

content/browser/in_process_webkit/indexed_db_layout_browsertest.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 "content/test/layout_browsertest.h"
 
 class IndexedDBLayoutTest : public InProcessBrowserLayoutTest {
  public:
   IndexedDBLayoutTest() : InProcessBrowserLayoutTest(
       FilePath(), FilePath().AppendASCII("storage").AppendASCII("indexeddb")) {
@@ skipping 97 matching lines @@
 
 IN_PROC_BROWSER_TEST_F(IndexedDBLayoutTest, KeyTests) {
   RunLayoutTests(kKeyTests);
 }
 
 IN_PROC_BROWSER_TEST_F(IndexedDBLayoutTest, TransactionTests) {
   RunLayoutTests(kTransactionTests);
 }
 
 // Frequent flaky timeouts.  http://crbug.com/123685
-IN_PROC_BROWSER_TEST_F(IndexedDBLayoutTest, DISABLED_RegressionTests) {
+IN_PROC_BROWSER_TEST_F(IndexedDBLayoutTest, RegressionTests) {
   RunLayoutTests(kRegressionTests);
 }