[reference - do not submit] Always create four pools in TaskSchedulerImpl.

chrome/renderer/chrome_content_renderer_client.h

Index: chrome/renderer/chrome_content_renderer_client.h
diff --git a/chrome/renderer/chrome_content_renderer_client.h b/chrome/renderer/chrome_content_renderer_client.h
index 2f3fb2722a6f39b1f61d73550581b750c40df084..ac7e032ef58b5c524f387d186cf648b93449f9c4 100644
--- a/chrome/renderer/chrome_content_renderer_client.h
+++ b/chrome/renderer/chrome_content_renderer_client.h
@@ -188,10 +188,8 @@ class ChromeContentRendererClient : public content::ContentRendererClient {
       const GURL& url) override;
   bool ShouldEnforceWebRTCRoutingPreferences() override;
   GURL OverrideFlashEmbedWithHTML(const GURL& url) override;
-  void GetTaskSchedulerInitializationParams(
-      std::vector<base::SchedulerWorkerPoolParams>* params_vector,
-      base::TaskScheduler::WorkerPoolIndexForTraitsCallback*
-          index_to_traits_callback) override;
+  std::unique_ptr<base::TaskSchedulerInitParams> GetTaskSchedulerInitParams()
+      override;
 
 #if BUILDFLAG(ENABLE_SPELLCHECK)
   // Sets a new |spellcheck|. Used for testing only.