[sensors](CrOS/Linux) Rename SensorDeviceManager cc and h files.

device/generic_sensor/linux/sensor_device_manager.h

 // Copyright 2016 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 DEVICE_GENERIC_SENSOR_LINUX_PLATFORM_SENSOR_MANAGER_H_
-#define DEVICE_GENERIC_SENSOR_LINUX_PLATFORM_SENSOR_MANAGER_H_
+#ifndef DEVICE_GENERIC_SENSOR_LINUX_SENSOR_DEVICE_MANAGER_H_
+#define DEVICE_GENERIC_SENSOR_LINUX_SENSOR_DEVICE_MANAGER_H_
 
 #include "base/scoped_observer.h"
 
 #include "device/base/device_monitor_linux.h"
 #include "device/generic_sensor/public/interfaces/sensor.mojom.h"
 
 namespace device {
 
 struct SensorInfoLinux;
 
@@ skipping 56 matching lines @@
   Delegate* delegate_;
 
   // A task runner, which |delegate_| lives on.
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(SensorDeviceManager);
 };
 
 }  // namespace device
 
-#endif  // DEVICE_GENERIC_SENSOR_LINUX_PLATFORM_SENSOR_MANAGER_H_
+#endif  // DEVICE_GENERIC_SENSOR_LINUX_SENSOR_DEVICE_MANAGER_H_