Virtualize The Existence of a Scheduler Worker Thread

base/task_scheduler/scheduler_worker_thread_stack_unittest.cc

Index: base/task_scheduler/scheduler_worker_thread_stack_unittest.cc
diff --git a/base/task_scheduler/scheduler_worker_thread_stack_unittest.cc b/base/task_scheduler/scheduler_worker_thread_stack_unittest.cc
index 629b77952249c5cbb5bde78cd788e2bc18c2f877..b234678a5c65052f825e146f7a358259ca03adb0 100644
--- a/base/task_scheduler/scheduler_worker_thread_stack_unittest.cc
+++ b/base/task_scheduler/scheduler_worker_thread_stack_unittest.cc
@@ -36,6 +36,9 @@ class MockSchedulerWorkerThreadDelegate
         "The mock thread is not expected to be woken before it is shutdown";
     return TimeDelta::Max();
   }
+  bool CanDetach(SchedulerWorkerThread* worker_thread) override {
+    return false;
+  }
 };
 
 class TaskSchedulerWorkerThreadStackTest : public testing::Test {
@@ -43,15 +46,18 @@ class TaskSchedulerWorkerThreadStackTest : public testing::Test {
   void SetUp() override {
     thread_a_ = SchedulerWorkerThread::Create(
         ThreadPriority::NORMAL,
-        WrapUnique(new MockSchedulerWorkerThreadDelegate), &task_tracker_);
+        WrapUnique(new MockSchedulerWorkerThreadDelegate), &task_tracker_,
+        SchedulerWorkerThread::InitialWorkerState::ALIVE);
     ASSERT_TRUE(thread_a_);
     thread_b_ = SchedulerWorkerThread::Create(
         ThreadPriority::NORMAL,
-        WrapUnique(new MockSchedulerWorkerThreadDelegate), &task_tracker_);
+        WrapUnique(new MockSchedulerWorkerThreadDelegate), &task_tracker_,
+        SchedulerWorkerThread::InitialWorkerState::ALIVE);
     ASSERT_TRUE(thread_b_);
     thread_c_ = SchedulerWorkerThread::Create(
         ThreadPriority::NORMAL,
-        WrapUnique(new MockSchedulerWorkerThreadDelegate), &task_tracker_);
+        WrapUnique(new MockSchedulerWorkerThreadDelegate), &task_tracker_,
+        SchedulerWorkerThread::InitialWorkerState::ALIVE);
     ASSERT_TRUE(thread_c_);
   }