Convert device_sensors to use mojo.

content/browser/device_sensors/device_light_message_filter.h

Index: content/browser/device_sensors/device_light_message_filter.h
diff --git a/content/browser/device_sensors/device_light_message_filter.h b/content/browser/device_sensors/device_light_message_filter.h
deleted file mode 100644
index bf302b7dd5a306572fad9a8a2792d81bd430091e..0000000000000000000000000000000000000000
--- a/content/browser/device_sensors/device_light_message_filter.h
+++ /dev/null
@@ -1,30 +0,0 @@
-// 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_DEVICE_SENSORS_DEVICE_LIGHT_MESSAGE_FILTER_H_
-#define CONTENT_BROWSER_DEVICE_SENSORS_DEVICE_LIGHT_MESSAGE_FILTER_H_
-
-#include "content/browser/device_sensors/device_sensor_message_filter.h"
-
-namespace content {
-
-class DeviceLightMessageFilter : public DeviceSensorMessageFilter {
- public:
-  DeviceLightMessageFilter();
-
-  // BrowserMessageFilter implementation.
-  bool OnMessageReceived(const IPC::Message& message) override;
-
- private:
-  ~DeviceLightMessageFilter() override;
-
-  // DeviceSensorMessageFilter implementation.
-  void DidStartPolling(base::SharedMemoryHandle handle) override;
-
-  DISALLOW_COPY_AND_ASSIGN(DeviceLightMessageFilter);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_DEVICE_SENSORS_DEVICE_LIGHT_MESSAGE_FILTER_H_