scheduler: Add a base directory

components/scheduler/base/task_queue_sets.cc

Index: components/scheduler/base/task_queue_sets.cc
diff --git a/components/scheduler/child/task_queue_sets.cc b/components/scheduler/base/task_queue_sets.cc
similarity index 92%
rename from components/scheduler/child/task_queue_sets.cc
rename to components/scheduler/base/task_queue_sets.cc
index 3f7b0cf0a5a46fd7a03130ef9f726851565f010c..9463823fb81809ccc03aa1efb594aa4a55829016 100644
--- a/components/scheduler/child/task_queue_sets.cc
+++ b/components/scheduler/base/task_queue_sets.cc
@@ -2,10 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "components/scheduler/child/task_queue_sets.h"
+#include "components/scheduler/base/task_queue_sets.h"
 
 #include "base/logging.h"
-#include "components/scheduler/child/task_queue_impl.h"
+#include "components/scheduler/base/task_queue_impl.h"
 
 namespace scheduler {
 namespace internal {
@@ -87,8 +87,8 @@ bool TaskQueueSets::GetOldestQueueInSet(
 }
 
 bool TaskQueueSets::IsSetEmpty(size_t set_index) const {
-  DCHECK_LT(set_index, enqueue_order_to_queue_maps_.size())
-      << " set_index = " << set_index;
+  DCHECK_LT(set_index, enqueue_order_to_queue_maps_.size()) << " set_index = "
+                                                            << set_index;
   return enqueue_order_to_queue_maps_[set_index].empty();
 }