Extract device_sensors to /device via Mojofication

content/content_common.gypi

Index: content/content_common.gypi
diff --git a/content/content_common.gypi b/content/content_common.gypi
index f989b373e088bb6e9a139e0b25663d8440ca9f9c..d56e5fb24814308c9bef7656438a4d6db6c83191 100644
--- a/content/content_common.gypi
+++ b/content/content_common.gypi
@@ -5,6 +5,7 @@
 {
   'dependencies': [
     '../base/base.gyp:base',
+    '../components/components.gyp:shared_memory_seqlock',
     '../components/tracing.gyp:tracing',
     '../gpu/command_buffer/command_buffer.gyp:gles2_utils',
     '../net/net.gyp:net',
@@ -218,11 +219,8 @@
       'common/date_time_suggestion.h',
       'common/device_sensors/device_light_data.h',
       'common/device_sensors/device_light_hardware_buffer.h',
-      'common/device_sensors/device_light_messages.h',
       'common/device_sensors/device_motion_hardware_buffer.h',
-      'common/device_sensors/device_motion_messages.h',
       'common/device_sensors/device_orientation_hardware_buffer.h',
-      'common/device_sensors/device_orientation_messages.h',
       'common/devtools_messages.h',
       'common/discardable_shared_memory_heap.cc',
       'common/discardable_shared_memory_heap.h',
@@ -436,8 +434,6 @@
       'common/net/url_fetcher.cc',
       'common/net/url_request_user_data.cc',
       'common/net/url_request_user_data.h',
-      'common/one_writer_seqlock.cc',
-      'common/one_writer_seqlock.h',
       'common/p2p_messages.h',
       'common/origin_util.cc',
       'common/page_state_serialization.cc',