[scheduler] Remove WebThreadImplForUtilityThread from public API.

third_party/WebKit/public/platform/scheduler/utility/webthread_impl_for_utility_thread.h

Index: third_party/WebKit/public/platform/scheduler/utility/webthread_impl_for_utility_thread.h
diff --git a/third_party/WebKit/public/platform/scheduler/utility/webthread_impl_for_utility_thread.h b/third_party/WebKit/public/platform/scheduler/utility/webthread_impl_for_utility_thread.h
deleted file mode 100644
index 30498aecbea5680328404e451227a83a806d78e0..0000000000000000000000000000000000000000
--- a/third_party/WebKit/public/platform/scheduler/utility/webthread_impl_for_utility_thread.h
+++ /dev/null
@@ -1,41 +0,0 @@
-// 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 THIRD_PARTY_WEBKIT_PUBLIC_PLATFORM_SCHEDULER_UTILITY_WEBTHREAD_IMPL_FOR_UTILITY_THREAD_H_
-#define THIRD_PARTY_WEBKIT_PUBLIC_PLATFORM_SCHEDULER_UTILITY_WEBTHREAD_IMPL_FOR_UTILITY_THREAD_H_
-
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "public/platform/scheduler/child/webthread_base.h"
-#include "public/platform/WebCommon.h"
-
-namespace blink {
-namespace scheduler {
-
-class BLINK_PLATFORM_EXPORT WebThreadImplForUtilityThread
-    : public scheduler::WebThreadBase {
- public:
-  WebThreadImplForUtilityThread();
-  ~WebThreadImplForUtilityThread() override;
-
-  // WebThread implementation.
-  WebScheduler* Scheduler() const override;
-  PlatformThreadId ThreadId() const override;
-
-  // WebThreadBase implementation.
-  base::SingleThreadTaskRunner* GetTaskRunner() const override;
-  scheduler::SingleThreadIdleTaskRunner* GetIdleTaskRunner() const override;
-  void Init() override;
-
- private:
-  scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
-  PlatformThreadId thread_id_;
-
-  DISALLOW_COPY_AND_ASSIGN(WebThreadImplForUtilityThread);
-};
-
-}  // namespace scheduler
-}  // namespace blink
-
-#endif  // THIRD_PARTY_WEBKIT_PUBLIC_PLATFORM_SCHEDULER_UTILITY_WEBTHREAD_IMPL_FOR_UTILITY_THREAD_H_