Convert PowerSaveBlockResourceThrottle to be client of WakeLock mojo service.

content/browser/loader/power_save_block_resource_throttle.h

-// Copyright (c) 2013 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 CONTENT_BROWSER_LOADER_POWER_SAVE_BLOCK_RESOURCE_THROTTLE_H_
-#define CONTENT_BROWSER_LOADER_POWER_SAVE_BLOCK_RESOURCE_THROTTLE_H_
-
-#include <memory>
-#include <string>
-
-#include "base/compiler_specific.h"
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/sequenced_task_runner.h"
-#include "base/single_thread_task_runner.h"
-#include "base/timer/timer.h"
-#include "content/public/browser/resource_throttle.h"
-
-namespace device {
-class PowerSaveBlocker;
-}  // namespace device
-
-namespace content {
-
-// This ResourceThrottle blocks power save until large upload request finishes.
-class PowerSaveBlockResourceThrottle : public ResourceThrottle {
- public:
-  PowerSaveBlockResourceThrottle(
-      const std::string& host,
-      scoped_refptr<base::SequencedTaskRunner> ui_task_runner,
-      scoped_refptr<base::SingleThreadTaskRunner> blocking_task_runner);
-  ~PowerSaveBlockResourceThrottle() override;
-
-  // ResourceThrottle overrides:
-  void WillStartRequest(bool* defer) override;
-  void WillProcessResponse(bool* defer) override;
-  const char* GetNameForLogging() const override;
-
- private:
-  void ActivatePowerSaveBlocker();
-
-  const std::string host_;
-  base::OneShotTimer timer_;
-  std::unique_ptr<device::PowerSaveBlocker> power_save_blocker_;
-  scoped_refptr<base::SequencedTaskRunner> ui_task_runner_;
-  scoped_refptr<base::SingleThreadTaskRunner> blocking_task_runner_;
-
-  DISALLOW_COPY_AND_ASSIGN(PowerSaveBlockResourceThrottle);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_LOADER_POWER_SAVE_BLOCK_RESOURCE_THROTTLE_H_