TaskScheduler [11] Support ExecutionMode::SINGLE_THREADED.

base/task_scheduler/scheduler_worker_thread_unittest.cc

Index: base/task_scheduler/scheduler_worker_thread_unittest.cc
diff --git a/base/task_scheduler/scheduler_worker_thread_unittest.cc b/base/task_scheduler/scheduler_worker_thread_unittest.cc
index 758dfdde78bdeb3c50c3c91c1228635e626fb692..a6c205e1e411c2add7d127bd00bf2c958cd2f66b 100644
--- a/base/task_scheduler/scheduler_worker_thread_unittest.cc
+++ b/base/task_scheduler/scheduler_worker_thread_unittest.cc
@@ -91,7 +91,7 @@ class TaskSchedulerWorkerThreadTest : public testing::TestWithParam<size_t> {
         : outer_(outer) {}
 
     // SchedulerWorkerThread::Delegate:
-    void OnMainEntry() override {
+    void OnMainEntry(SchedulerWorkerThread* worker_thread) override {
       // Without this |auto_lock|, OnMainEntry() could be called twice without
       // generating an error.
       AutoSchedulerLock auto_lock(outer_->lock_);