Implement PollingThread for Device Motion.

content/content_tests.gypi

 # Copyright (c) 2013 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': 'test_support_content',
       'type': 'static_library',
       'defines!': ['CONTENT_IMPLEMENTATION'],
@@ skipping 262 matching lines @@
       'sources': [
         'browser/accessibility/browser_accessibility_mac_unittest.mm',
         'browser/accessibility/browser_accessibility_manager_unittest.cc',
         'browser/accessibility/browser_accessibility_win_unittest.cc',
         'browser/appcache/chrome_appcache_service_unittest.cc',
         'browser/browser_thread_unittest.cc',
         'browser/browser_url_handler_impl_unittest.cc',
         'browser/byte_stream_unittest.cc',
         'browser/child_process_security_policy_unittest.cc',
         'browser/device_orientation/data_fetcher_impl_android_unittest.cc',
+        'browser/device_orientation/device_motion_provider_unittest.cc',
         'browser/device_orientation/provider_unittest.cc',
         'browser/devtools/devtools_http_handler_unittest.cc',
         'browser/devtools/devtools_manager_unittest.cc',
         'browser/download/base_file_unittest.cc',
         'browser/download/download_file_unittest.cc',
         'browser/download/download_item_impl_unittest.cc',
         'browser/download/download_manager_impl_unittest.cc',
         'browser/download/file_metadata_unittest_linux.cc',
         'browser/download/rate_estimator_unittest.cc',
         'browser/download/save_package_unittest.cc',
@@ skipping 1098 matching lines @@
                   'files': ['<(PRODUCT_DIR)/libnpapi_test_plugin.so'],
                 },
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }