scheduler: Remove task observer shenanigans

components/scheduler/renderer/webthread_impl_for_renderer_scheduler_unittest.cc

Index: components/scheduler/renderer/webthread_impl_for_renderer_scheduler_unittest.cc
diff --git a/components/scheduler/renderer/webthread_impl_for_renderer_scheduler_unittest.cc b/components/scheduler/renderer/webthread_impl_for_renderer_scheduler_unittest.cc
index 6999da7126311c8d0fbc860eae8088ecbb93e2fa..77173b06c36747e4bee15116b756e9e55e1c71a5 100644
--- a/components/scheduler/renderer/webthread_impl_for_renderer_scheduler_unittest.cc
+++ b/components/scheduler/renderer/webthread_impl_for_renderer_scheduler_unittest.cc
@@ -47,12 +47,6 @@ class WebThreadImplForRendererSchedulerTest : public testing::Test {
   void TearDown() override { scheduler_.Shutdown(); }
 
  protected:
-  void EatDefaultTask(MockTaskObserver* observer) {
-    // The scheduler posts one extra DoWork() task automatically.
-    EXPECT_CALL(*observer, willProcessTask());
-    EXPECT_CALL(*observer, didProcessTask());
-  }
-
   base::MessageLoop message_loop_;
   RendererSchedulerImpl scheduler_;
   scoped_refptr<base::SingleThreadTaskRunner> default_task_runner_;
@@ -71,8 +65,6 @@ TEST_F(WebThreadImplForRendererSchedulerTest, TestTaskObserver) {
     EXPECT_CALL(observer, willProcessTask());
     EXPECT_CALL(*task, run());
     EXPECT_CALL(observer, didProcessTask());
-
-    EatDefaultTask(&observer);
   }
 
   thread_.postTask(blink::WebTraceLocation(), task.release());
@@ -91,8 +83,6 @@ TEST_F(WebThreadImplForRendererSchedulerTest, TestWorkBatchWithOneTask) {
     EXPECT_CALL(observer, willProcessTask());
     EXPECT_CALL(*task, run());
     EXPECT_CALL(observer, didProcessTask());
-
-    EatDefaultTask(&observer);
   }
 
   thread_.postTask(blink::WebTraceLocation(), task.release());
@@ -116,8 +106,6 @@ TEST_F(WebThreadImplForRendererSchedulerTest, TestWorkBatchWithTwoTasks) {
     EXPECT_CALL(observer, willProcessTask());
     EXPECT_CALL(*task2, run());
     EXPECT_CALL(observer, didProcessTask());
-
-    EatDefaultTask(&observer);
   }
 
   thread_.postTask(blink::WebTraceLocation(), task1.release());
@@ -147,8 +135,6 @@ TEST_F(WebThreadImplForRendererSchedulerTest, TestWorkBatchWithThreeTasks) {
     EXPECT_CALL(observer, willProcessTask());
     EXPECT_CALL(*task3, run());
     EXPECT_CALL(observer, didProcessTask());
-
-    EatDefaultTask(&observer);
   }
 
   thread_.postTask(blink::WebTraceLocation(), task1.release());
@@ -193,8 +179,6 @@ TEST_F(WebThreadImplForRendererSchedulerTest, TestNestedRunLoop) {
 
     // A final callback for EnterRunLoop.
     EXPECT_CALL(observer, didProcessTask());
-
-    EatDefaultTask(&observer);
   }
 
   message_loop_.task_runner()->PostTask(