Use TaskScheduler::InitParams to initialize TaskScheduler in browser process.

chrome/browser/chrome_content_browser_client.h

Index: chrome/browser/chrome_content_browser_client.h
diff --git a/chrome/browser/chrome_content_browser_client.h b/chrome/browser/chrome_content_browser_client.h
index f1458e550c47ef6cb1af6401aa7d3b848c4b2ab5..f10e7569637dc8f74fc212db1bce540b97fba3e4 100644
--- a/chrome/browser/chrome_content_browser_client.h
+++ b/chrome/browser/chrome_content_browser_client.h
@@ -326,10 +326,8 @@ class ChromeContentBrowserClient : public content::ContentBrowserClient {
                           media::mojom::RemoterRequest request) final;
 #endif  // BUILDFLAG(ENABLE_MEDIA_REMOTING)
 
-  void GetTaskSchedulerInitializationParams(
-      std::vector<base::SchedulerWorkerPoolParams>* params_vector,
-      base::TaskScheduler::WorkerPoolIndexForTraitsCallback*
-          index_to_traits_callback) override;
+  std::unique_ptr<base::TaskScheduler::InitParams> GetTaskSchedulerInitParams()
+      override;
   void PerformExperimentalTaskSchedulerRedirections() override;
   bool ShouldRedirectDOMStorageTaskRunner() override;
   bool RedirectNonUINonIOBrowserThreadsToTaskScheduler() override;