chromeos: Add operations to monitor the screen orientation.

content/content_browser.gypi

 # Copyright (c) 2011 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': 'content_browser',
       'type': 'static_library',
       'dependencies': [
@@ skipping 419 matching lines @@
         'browser/resolve_proxy_msg_helper.cc',
         'browser/resolve_proxy_msg_helper.h',
         'browser/resource_context.cc',
         'browser/resource_context.h',
         'browser/safe_util_win.cc',
         'browser/safe_util_win.h',
         'browser/sensors/sensors_provider.cc',
         'browser/sensors/sensors_provider.h',
         'browser/sensors/sensors_provider_impl.cc',
         'browser/sensors/sensors_provider_impl.h',
+        'browser/sensors/sensors_source_chromeos.cc',
+        'browser/sensors/sensors_source_chromeos.h',
         'browser/site_instance.cc',
         'browser/site_instance.h',
         'browser/speech/audio_encoder.cc',
         'browser/speech/audio_encoder.h',
         'browser/speech/endpointer/endpointer.cc',
         'browser/speech/endpointer/endpointer.h',
         'browser/speech/endpointer/energy_endpointer.cc',
         'browser/speech/endpointer/energy_endpointer.h',
         'browser/speech/endpointer/energy_endpointer_params.cc',
         'browser/speech/endpointer/energy_endpointer_params.h',
@@ skipping 170 matching lines @@
             ['exclude', '^browser/accessibility/browser_accessibility_win.h'],
             ['exclude', '^browser/renderer_host/render_widget_host_view_win.cc'],
             ['exclude', '^browser/renderer_host/render_widget_host_view_win.h'],
             ['exclude', '^browser/renderer_host/render_message_filter_win.cc'],
           ],
         }],
       ],
     },
   ],
 }