Add an experiment to redirect DOMStorageTaskRunner to TaskScheduler.

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index fd6fbd30f692962770e379e15216e4a503f5033e..e728e6f9394c63b41053b424aa161d535d5cb82b 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -3372,6 +3372,11 @@ void ChromeContentBrowserClient::
       MaybePerformBrowserTaskSchedulerRedirection();
 }
 
+bool ChromeContentBrowserClient::ShouldRedirectDOMStorageTaskRunner() {
+  return variations::GetVariationParamValue(
+             "BrowserScheduler", "RedirectDOMStorageTaskRunner") == "true";
+}
+
 bool ChromeContentBrowserClient::
     RedirectNonUINonIOBrowserThreadsToTaskScheduler() {
   return variations::GetVariationParamValue(