Plumb Task Scheduler Histograms to the Task Scheduler Internals Page

base/task_scheduler/scheduler_worker_pool_impl.h

Index: base/task_scheduler/scheduler_worker_pool_impl.h
diff --git a/base/task_scheduler/scheduler_worker_pool_impl.h b/base/task_scheduler/scheduler_worker_pool_impl.h
index a621f797a53473b2096170a07689e456d5c3f2de..4bd88001564ca8a9cc66f0935bdd6f2fc849b65e 100644
--- a/base/task_scheduler/scheduler_worker_pool_impl.h
+++ b/base/task_scheduler/scheduler_worker_pool_impl.h
@@ -94,7 +94,11 @@ class BASE_EXPORT SchedulerWorkerPoolImpl : public SchedulerWorkerPool {
                                scoped_refptr<Sequence> sequence,
                                SchedulerWorker* worker) override;
 
-  const HistogramBase* num_tasks_between_waits_histogram_for_testing() const {
+  const HistogramBase* detach_duration_histogram() const {
+    return detach_duration_histogram_;
+  }
+
+  const HistogramBase* num_tasks_between_waits_histogram() const {
     return num_tasks_between_waits_histogram_;
   }