Move blink scheduler implementation into a component

components/scheduler/child/nestable_single_thread_task_runner.h

Index: components/scheduler/child/nestable_single_thread_task_runner.h
diff --git a/content/child/scheduler/nestable_single_thread_task_runner.h b/components/scheduler/child/nestable_single_thread_task_runner.h
similarity index 64%
rename from content/child/scheduler/nestable_single_thread_task_runner.h
rename to components/scheduler/child/nestable_single_thread_task_runner.h
index dbacaf8cab52d67aa5965650a5ebd7cf27af9b50..e1bf99094da241978c993eb2b53eaf4284c66c65 100644
--- a/content/child/scheduler/nestable_single_thread_task_runner.h
+++ b/components/scheduler/child/nestable_single_thread_task_runner.h
@@ -2,16 +2,16 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CONTENT_CHILD_SCHEDULER_NESTABLE_SINGLE_THREAD_TASK_RUNNER_H_
-#define CONTENT_CHILD_SCHEDULER_NESTABLE_SINGLE_THREAD_TASK_RUNNER_H_
+#ifndef COMPONENTS_SCHEDULER_CHILD_NESTABLE_SINGLE_THREAD_TASK_RUNNER_H_
+#define COMPONENTS_SCHEDULER_CHILD_NESTABLE_SINGLE_THREAD_TASK_RUNNER_H_
 
 #include "base/single_thread_task_runner.h"
-#include "content/common/content_export.h"
+#include "components/scheduler/scheduler_export.h"
 
-namespace content {
+namespace scheduler {
 
 // A single thread task runner which exposes whether it is running nested.
-class CONTENT_EXPORT NestableSingleThreadTaskRunner
+class SCHEDULER_EXPORT NestableSingleThreadTaskRunner
     : public base::SingleThreadTaskRunner {
  public:
   NestableSingleThreadTaskRunner() {}
@@ -26,6 +26,6 @@ class CONTENT_EXPORT NestableSingleThreadTaskRunner
   DISALLOW_COPY_AND_ASSIGN(NestableSingleThreadTaskRunner);
 };
 
-}  // namespace content
+}  // namespace scheduler
 
-#endif  // CONTENT_CHILD_SCHEDULER_NESTABLE_SINGLE_THREAD_TASK_RUNNER_H_
+#endif  // COMPONENTS_SCHEDULER_CHILD_NESTABLE_SINGLE_THREAD_TASK_RUNNER_H_