PlatformThreadHandle: remove public id() interface

components/scheduler/child/webthread_impl_for_worker_scheduler.cc

 // 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.
 
 #include "components/scheduler/child/webthread_impl_for_worker_scheduler.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
 #include "base/synchronization/waitable_event.h"
@@ skipping 51 matching lines @@
 }
 
 void WebThreadImplForWorkerScheduler::WillDestroyCurrentMessageLoop() {
   task_runner_ = nullptr;
   idle_task_runner_ = nullptr;
   web_scheduler_.reset();
   worker_scheduler_.reset();
 }
 
 blink::PlatformThreadId WebThreadImplForWorkerScheduler::threadId() const {
-  return thread_->thread_id();
+  return thread_->GetThreadId();
 }
 
 blink::WebScheduler* WebThreadImplForWorkerScheduler::scheduler() const {
   return web_scheduler_.get();
 }
 
 base::SingleThreadTaskRunner* WebThreadImplForWorkerScheduler::TaskRunner()
     const {
   return task_runner_.get();
 }
 
 SingleThreadIdleTaskRunner* WebThreadImplForWorkerScheduler::IdleTaskRunner()
     const {
   return idle_task_runner_.get();
 }
 
 void WebThreadImplForWorkerScheduler::AddTaskObserverInternal(
     base::MessageLoop::TaskObserver* observer) {
   worker_scheduler_->AddTaskObserver(observer);
 }
 
 void WebThreadImplForWorkerScheduler::RemoveTaskObserverInternal(
     base::MessageLoop::TaskObserver* observer) {
   worker_scheduler_->RemoveTaskObserver(observer);
 }
 
 }  // namespace scheduler