Remove TestWebThreadBundle::REAL_TASK_SCHEDULER.

ios/web/test/test_web_thread_bundle.cc

Index: ios/web/test/test_web_thread_bundle.cc
diff --git a/ios/web/test/test_web_thread_bundle.cc b/ios/web/test/test_web_thread_bundle.cc
index 14eb65608d7ef4ecd7759f744806eec77e5f82fa..e6d776e4a977dd10b9bb05035681c117c42ea48f 100644
--- a/ios/web/test/test_web_thread_bundle.cc
+++ b/ios/web/test/test_web_thread_bundle.cc
@@ -8,7 +8,6 @@
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/test/scoped_async_task_scheduler.h"
-#include "base/test/scoped_task_scheduler.h"
 #include "ios/web/public/test/test_web_thread.h"
 #include "ios/web/web_thread_impl.h"
 
@@ -53,7 +52,6 @@ TestWebThreadBundle::~TestWebThreadBundle() {
   base::RunLoop().RunUntilIdle();
 
   scoped_async_task_scheduler_.reset();
-  scoped_task_scheduler_.reset();
 }
 
 void TestWebThreadBundle::Init(int options) {
@@ -65,13 +63,8 @@ void TestWebThreadBundle::Init(int options) {
 
   ui_thread_.reset(new TestWebThread(WebThread::UI, message_loop_.get()));
 
-  if (options & REAL_TASK_SCHEDULER) {
-    scoped_async_task_scheduler_ =
-        base::MakeUnique<base::test::ScopedAsyncTaskScheduler>();
-  } else {
-    scoped_task_scheduler_ =
-        base::MakeUnique<base::test::ScopedTaskScheduler>(message_loop_.get());
-  }
+  scoped_async_task_scheduler_ =
+      base::MakeUnique<base::test::ScopedAsyncTaskScheduler>();
 
   if (options & TestWebThreadBundle::REAL_DB_THREAD) {
     db_thread_.reset(new TestWebThread(WebThread::DB));