Remove worker pool names from TaskScheduler.TaskLatency.* histograms.

base/task_scheduler/scheduler_worker_stack_unittest.cc

Index: base/task_scheduler/scheduler_worker_stack_unittest.cc
diff --git a/base/task_scheduler/scheduler_worker_stack_unittest.cc b/base/task_scheduler/scheduler_worker_stack_unittest.cc
index 5359dcd0ebc4f225fc758342cb5eecbf688bad2b..520e52cd61f556ff52952fc63284d71ab162b2bf 100644
--- a/base/task_scheduler/scheduler_worker_stack_unittest.cc
+++ b/base/task_scheduler/scheduler_worker_stack_unittest.cc
@@ -26,9 +26,8 @@ class MockSchedulerWorkerDelegate : public SchedulerWorker::Delegate {
   scoped_refptr<Sequence> GetWork(SchedulerWorker* worker) override {
     return nullptr;
   }
-  void DidRunTaskWithPriority(TaskPriority task_priority,
-                              const TimeDelta& task_latency) override {
-    ADD_FAILURE() << "Unexpected call to DidRunTaskWithPriority()";
+  void DidRunTask() override {
+    ADD_FAILURE() << "Unexpected call to DidRunTask()";
   }
   void ReEnqueueSequence(scoped_refptr<Sequence> sequence) override {
     ADD_FAILURE() << "Unexpected call to ReEnqueueSequence()";