Revert of Rotate screen in response to accelerator or device orientation sensors.

athena/system/orientation_controller.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 ATHENA_SYSTEM_ORIENTATION_CONTROLLER_H_
-#define ATHENA_SYSTEM_ORIENTATION_CONTROLLER_H_
-
-#include "athena/system/device_socket_listener.h"
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "ui/gfx/display.h"
-
-namespace base {
-class FilePath;
-class FilePathWatcher;
-class TaskRunner;
-}
-
-namespace athena {
-
-// Monitors accelerometers, detecting orientation changes. When a change is
-// detected rotates the root window to match.
-class OrientationController
-    : public DeviceSocketListener,
-      public base::RefCountedThreadSafe<OrientationController> {
- public:
-  OrientationController(scoped_refptr<base::TaskRunner> io_task_runner);
-
- private:
-  friend class base::RefCountedThreadSafe<OrientationController>;
-
-  virtual ~OrientationController();
-
-  // Watch for the socket path to be created, called on the IO thread.
-  void WatchForSocketPathOnIO();
-  void OnFilePathChangedOnIO(const base::FilePath& path, bool error);
-
-  // Overridden from device::DeviceSocketListener:
-  virtual void OnDataAvailableOnIO(const void* data) OVERRIDE;
-
-  // Rotates the display to |rotation|, called on the UI thread.
-  void RotateOnUI(gfx::Display::Rotation rotation);
-
-  // The last configured rotation.
-  gfx::Display::Rotation current_rotation_;
-
-  // The timestamp of the last applied orientation change.
-  int64_t last_orientation_change_time_;
-
-  // A task runner for the UI thread.
-  scoped_refptr<base::TaskRunner> ui_task_runner_;
-
-  // File path watcher used to detect when sensors are present.
-  scoped_ptr<base::FilePathWatcher> watcher_;
-
-  base::WeakPtrFactory<OrientationController> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(OrientationController);
-};
-
-}  // namespace athena
-
-#endif  // ATHENA_SYSTEM_ORIENTATION_CONTROLLER_H_