Add DeviceEventRouter class.

chrome/chrome_browser_chromeos.gypi

 # Copyright (c) 2012 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.
 
 {
   'targets': [
     {
       'target_name': 'browser_chromeos',
       'type': 'static_library',
@@ skipping 1019 matching lines @@
       ],
       'conditions': [
         ['enable_extensions==1', {
           'dependencies': [
             '../ui/file_manager/file_manager.gyp:file_manager',
           ],
           'sources': [
             # Only extension API implementations should go here.
             'browser/chromeos/extensions/echo_private_api.cc',
             'browser/chromeos/extensions/echo_private_api.h',
+            'browser/chromeos/extensions/file_manager/device_event_router.cc',
+            'browser/chromeos/extensions/file_manager/device_event_router.h',
             'browser/chromeos/extensions/file_manager/event_router.cc',
             'browser/chromeos/extensions/file_manager/event_router.h',
             'browser/chromeos/extensions/file_manager/file_browser_handler_api.cc',
             'browser/chromeos/extensions/file_manager/file_browser_handler_api.h',
             'browser/chromeos/extensions/file_manager/file_browser_private_api.cc',
             'browser/chromeos/extensions/file_manager/file_browser_private_api.h',
             'browser/chromeos/extensions/file_manager/file_browser_private_api_factory.cc',
             'browser/chromeos/extensions/file_manager/file_browser_private_api_factory.h',
             'browser/chromeos/extensions/file_manager/file_browser_private_api_functions.h',
             'browser/chromeos/extensions/file_manager/private_api_base.cc',
@@ skipping 142 matching lines @@
         'browser/chromeos/attestation/attestation_signed_data.proto',
       ],
       'variables': {
         'proto_in_dir': 'browser/chromeos/attestation',
         'proto_out_dir': 'chrome/browser/chromeos/attestation',
       },
       'includes': [ '../build/protoc.gypi' ]
     },
   ],
 }