Move blink scheduler implementation into a component

components/scheduler/child/null_idle_task_runner.h

Index: components/scheduler/child/null_idle_task_runner.h
diff --git a/components/scheduler/child/null_idle_task_runner.h b/components/scheduler/child/null_idle_task_runner.h
new file mode 100644
index 0000000000000000000000000000000000000000..734d0c152ce1d75dc165933457823db88e840a10
--- /dev/null
+++ b/components/scheduler/child/null_idle_task_runner.h
@@ -0,0 +1,33 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef COMPONENTS_SCHEDULER_CHILD_NULL_IDLE_TASK_RUNNER_H_
+#define COMPONENTS_SCHEDULER_CHILD_NULL_IDLE_TASK_RUNNER_H_
+
+#include "components/scheduler/child/single_thread_idle_task_runner.h"
+
+namespace scheduler {
+
+class NullIdleTaskRunner : public SingleThreadIdleTaskRunner {
+ public:
+  NullIdleTaskRunner();
+  void PostIdleTask(const tracked_objects::Location& from_here,
+                    const IdleTask& idle_task) override;
+
+  void PostNonNestableIdleTask(const tracked_objects::Location& from_here,
+                               const IdleTask& idle_task) override;
+
+  void PostIdleTaskAfterWakeup(const tracked_objects::Location& from_here,
+                               const IdleTask& idle_task) override;
+
+ protected:
+  ~NullIdleTaskRunner() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(NullIdleTaskRunner);
+};
+
+}  // namespace scheduler
+
+#endif  // COMPONENTS_SCHEDULER_CHILD_NULL_IDLE_TASK_RUNNER_H_