[scheduler] Remove blink::scheduler::TaskQueue from public API.

third_party/WebKit/Source/platform/scheduler/child/webthread_impl_for_worker_scheduler.cc

Index: third_party/WebKit/Source/platform/scheduler/child/webthread_impl_for_worker_scheduler.cc
diff --git a/third_party/WebKit/Source/platform/scheduler/child/webthread_impl_for_worker_scheduler.cc b/third_party/WebKit/Source/platform/scheduler/child/webthread_impl_for_worker_scheduler.cc
index 40ed4796e0c129cfe07c7a0747dd8973ea14721a..0f8e9c9d6c8ffb1be27014fc5481b214946386f6 100644
--- a/third_party/WebKit/Source/platform/scheduler/child/webthread_impl_for_worker_scheduler.cc
+++ b/third_party/WebKit/Source/platform/scheduler/child/webthread_impl_for_worker_scheduler.cc
@@ -10,7 +10,7 @@
 #include "base/single_thread_task_runner.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/time/default_tick_clock.h"
-#include "public/platform/scheduler/base/task_queue.h"
+#include "platform/scheduler/base/task_queue.h"
 #include "platform/scheduler/child/scheduler_tqm_delegate_impl.h"
 #include "platform/scheduler/child/web_scheduler_impl.h"
 #include "platform/scheduler/child/web_task_runner_impl.h"
@@ -66,12 +66,12 @@ void WebThreadImplForWorkerScheduler::InitOnThread(
       thread_->message_loop(), base::MakeUnique<base::DefaultTickClock>());
   worker_scheduler_ = CreateWorkerScheduler();
   worker_scheduler_->Init();
-  task_runner_ = worker_scheduler_->DefaultTaskRunner();
+  task_runner_ = worker_scheduler_->DefaultTaskQueue();
   idle_task_runner_ = worker_scheduler_->IdleTaskRunner();
   web_scheduler_.reset(new WebSchedulerImpl(
       worker_scheduler_.get(), worker_scheduler_->IdleTaskRunner(),
-      worker_scheduler_->DefaultTaskRunner(),
-      worker_scheduler_->DefaultTaskRunner()));
+      worker_scheduler_->DefaultTaskQueue(),
+      worker_scheduler_->DefaultTaskQueue()));
   base::MessageLoop::current()->AddDestructionObserver(this);
   web_task_runner_ = WebTaskRunnerImpl::Create(task_runner_);
   completion->Signal();