Introduce TaskRunner::RunsTasksInCurrentSequence()

base/message_loop/message_loop_task_runner.h

 // Copyright (c) 2012 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 BASE_MESSAGE_LOOP_MESSAGE_LOOP_TASK_RUNNER_H_
 #define BASE_MESSAGE_LOOP_MESSAGE_LOOP_TASK_RUNNER_H_
 
 #include "base/base_export.h"
 #include "base/callback.h"
 #include "base/macros.h"
@@ skipping 19 matching lines @@
   // Initialize this message loop task runner on the current thread.
   void BindToCurrentThread();
 
   // SingleThreadTaskRunner implementation
   bool PostDelayedTask(const tracked_objects::Location& from_here,
                        OnceClosure task,
                        base::TimeDelta delay) override;
   bool PostNonNestableDelayedTask(const tracked_objects::Location& from_here,
                                   OnceClosure task,
                                   base::TimeDelta delay) override;
-  bool RunsTasksOnCurrentThread() const override;
+  bool RunsTasksInCurrentSequence() const override;
 
  private:
   friend class RefCountedThreadSafe<MessageLoopTaskRunner>;
   ~MessageLoopTaskRunner() override;
 
   // The incoming queue receiving all posted tasks.
   scoped_refptr<IncomingTaskQueue> incoming_queue_;
 
   // ID of the thread |this| was created on.  Could be accessed on multiple
   // threads, protected by |valid_thread_id_lock_|.
   PlatformThreadId valid_thread_id_;
   mutable Lock valid_thread_id_lock_;
 
   DISALLOW_COPY_AND_ASSIGN(MessageLoopTaskRunner);
 };
 
 }  // namespace internal
 }  // namespace base
 
 #endif  // BASE_MESSAGE_LOOP_MESSAGE_LOOP_TASK_RUNNER_H_