Revert of Chrome power profiler service

content/browser/devtools/devtools_power_handler.h

-// Copyright 2014 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_DEVTOOLS_DEVTOOLS_POWER_HANDLER_H_
-#define CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_POWER_HANDLER_H_
-
-#include "base/time/time.h"
-#include "content/browser/devtools/devtools_protocol.h"
-#include "content/browser/power_profiler/power_profiler_observer.h"
-
-namespace content {
-
-// This class provides power information to DevTools.
-class DevToolsPowerHandler
-    : public DevToolsProtocol::Handler,
-      public PowerProfilerObserver {
- public:
-  DevToolsPowerHandler();
-  virtual ~DevToolsPowerHandler();
-
-  // PowerProfilerObserver override.
-  virtual void OnPowerEvent(const PowerEventVector&) OVERRIDE;
-
- private:
-  scoped_refptr<DevToolsProtocol::Response> OnStart(
-      scoped_refptr<DevToolsProtocol::Command> command);
-  scoped_refptr<DevToolsProtocol::Response> OnEnd(
-      scoped_refptr<DevToolsProtocol::Command> command);
-
-  DISALLOW_COPY_AND_ASSIGN(DevToolsPowerHandler);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_POWER_HANDLER_H_