Add an experiment to redirect DOMStorageTaskRunner to TaskScheduler.

content/public/browser/content_browser_client.cc

Index: content/public/browser/content_browser_client.cc
diff --git a/content/public/browser/content_browser_client.cc b/content/public/browser/content_browser_client.cc
index b7cdf328df4cc32d692f32cd9631250f89a53853..53c4b2311ec3c938a5172868a20cd73de7ea28d2 100644
--- a/content/public/browser/content_browser_client.cc
+++ b/content/public/browser/content_browser_client.cc
@@ -441,6 +441,10 @@ ContentBrowserClient::GetMemoryCoordinatorDelegate() {
   return nullptr;
 }
 
+bool ContentBrowserClient::ShouldRedirectDOMStorageTaskRunner() {
+  return false;
+}
+
 bool ContentBrowserClient::RedirectNonUINonIOBrowserThreadsToTaskScheduler() {
   return false;
 }