Introduce TaskRunner::RunsTasksInCurrentSequence()

mojo/public/cpp/bindings/tests/bind_task_runner_unittest.cc

 // Copyright 2016 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.
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/message_loop/message_loop.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 30 matching lines @@
   bool PostDelayedTask(const tracked_objects::Location& from_here,
                        base::OnceClosure task,
                        base::TimeDelta delay) override {
     {
       base::AutoLock locker(lock_);
       tasks_.push(std::move(task));
     }
     task_ready_.Signal();
     return true;
   }
-  bool RunsTasksOnCurrentThread() const override {
+  bool RunsTasksOnCurrentThread() const {

[gab, 2017/04/18 15:00:33]

Remove this.

+    return RunsTasksInCurrentSequence();
+  }
+  bool RunsTasksInCurrentSequence() const override {
     return base::PlatformThread::CurrentRef() == thread_id_;
   }
 
   // Only quits when Quit() is called.
   void Run() {
     DCHECK(RunsTasksOnCurrentThread());
     quit_called_ = false;
 
     while (true) {
       {
@@ skipping 324 matching lines @@
   EXPECT_TRUE(sender_impl_error);
   connection_ptr_task_runner_->Run();
   EXPECT_TRUE(connection_ptr_error);
   sender_ptr_task_runner_->Run();
   EXPECT_TRUE(sender_ptr_error);
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace mojo