Experiment with redirecting all BrowserThreads (but UI/IO) 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 571a89c924c56dcccf5ad219f0b6ec88b70767c9..91a5bfdc0379c756b83004913dba8dccfc04236b 100644
--- a/content/public/browser/content_browser_client.cc
+++ b/content/public/browser/content_browser_client.cc
@@ -434,4 +434,8 @@ ContentBrowserClient::GetMemoryCoordinatorDelegate() {
   return std::unique_ptr<MemoryCoordinatorDelegate>();
 }
 
+bool ContentBrowserClient::RedirectNonUINonIOBrowserThreadsToTaskScheduler() {
+  return false;
+}
+
 }  // namespace content