Add an experiment to redirect DOMStorageTaskRunner to TaskScheduler.

chrome/browser/chrome_content_browser_client.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 "chrome/browser/chrome_content_browser_client.h"
 
 #include <map>
 #include <set>
 #include <utility>
 #include <vector>
@@ skipping 3354 matching lines @@
   *index_to_traits_callback = base::Bind(&task_scheduler_util::initialization::
                                              BrowserWorkerPoolIndexForTraits);
 }
 
 void ChromeContentBrowserClient::
     PerformExperimentalTaskSchedulerRedirections() {
   task_scheduler_util::variations::
       MaybePerformBrowserTaskSchedulerRedirection();
 }
 
+bool ChromeContentBrowserClient::ShouldRedirectDOMStorageTaskRunner() {
+  return variations::GetVariationParamValue(
+             "BrowserScheduler", "RedirectDOMStorageTaskRunner") == "true";
+}
+
 bool ChromeContentBrowserClient::
     RedirectNonUINonIOBrowserThreadsToTaskScheduler() {
   return variations::GetVariationParamValue(
              "BrowserScheduler", "RedirectNonUINonIOBrowserThreads") == "true";
 }
 
 // static
 void ChromeContentBrowserClient::SetDefaultQuotaSettingsForTesting(
     const storage::QuotaSettings* settings) {
   g_default_quota_settings = settings;
 }