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

components/task_scheduler_util/renderer/initialization.h

Index: components/task_scheduler_util/renderer/initialization.h
diff --git a/components/task_scheduler_util/renderer/initialization.h b/components/task_scheduler_util/renderer/initialization.h
index 6f351507eec4904cc16a47cb029ef7ac86328671..7029e571d94059f8bd5db0687e9a185babca67a7 100644
--- a/components/task_scheduler_util/renderer/initialization.h
+++ b/components/task_scheduler_util/renderer/initialization.h
@@ -5,27 +5,17 @@
 #ifndef COMPONENTS_TASK_SCHEDULER_UTIL_RENDERER_INITIALIZATION_H_
 #define COMPONENTS_TASK_SCHEDULER_UTIL_RENDERER_INITIALIZATION_H_
 
-#include <stddef.h>
+#include <memory>
 
-#include <vector>
-
-#include "base/task_scheduler/scheduler_worker_pool_params.h"
-
-namespace base {
-class TaskTraits;
-}
+#include "base/task_scheduler/task_scheduler.h"
 
 namespace task_scheduler_util {
 
-// Gets a vector of SchedulerWorkerPoolParams to initialize TaskScheduler in a
-// renderer based off variation params specified on the command line. Returns an
-// empty vector if variation params specified on the command line are incomplete
-// or invalid.
-std::vector<base::SchedulerWorkerPoolParams> GetRendererWorkerPoolParams();
-
-// Maps |traits| to the index of a renderer worker pool vector provided by
-// GetRendererWorkerPoolParams().
-size_t RendererWorkerPoolIndexForTraits(const base::TaskTraits& traits);
+// Gets a TaskSchedulerInitParams object to initialize TaskScheduler in a
+// renderer based off variations specified on the command line. Returns nullptr
+// on failure.
+std::unique_ptr<base::TaskSchedulerInitParams>
+GetRendererTaskSchedulerInitParamsFromCommandLine();
 
 }  // namespace task_scheduler_util