Use chromeos accelerometer reader and support only lid accelerometer.

athena/system/system_ui_impl.cc

Index: athena/system/system_ui_impl.cc
diff --git a/athena/system/system_ui_impl.cc b/athena/system/system_ui_impl.cc
index 208192101ec8114884b680370f8a08f2f785df5c..a4437cc818dc7e1c2f2da9dd2b8cfe37076687e5 100644
--- a/athena/system/system_ui_impl.cc
+++ b/athena/system/system_ui_impl.cc
@@ -6,7 +6,6 @@
 
 #include "athena/screen/public/screen_manager.h"
 #include "athena/system/background_controller.h"
-#include "athena/system/device_socket_listener.h"
 #include "athena/system/orientation_controller.h"
 #include "athena/system/power_button_controller.h"
 #include "athena/system/status_icon_container_view.h"
@@ -113,7 +112,7 @@ class SystemUIImpl : public SystemUI {
   }
 
  private:
-  scoped_refptr<OrientationController> orientation_controller_;
+  scoped_ptr<OrientationController> orientation_controller_;
   scoped_ptr<PowerButtonController> power_button_controller_;
   scoped_ptr<BackgroundController> background_controller_;
 
@@ -130,7 +129,6 @@ class SystemUIImpl : public SystemUI {
 
 // static
 SystemUI* SystemUI::Create(scoped_refptr<base::TaskRunner> file_task_runner) {
-  DeviceSocketListener::CreateSocketManager(file_task_runner);
   SystemUIImpl* system_ui = new SystemUIImpl(file_task_runner);
   instance = system_ui;
   system_ui->Init();
@@ -148,7 +146,6 @@ void SystemUI::Shutdown() {
   CHECK(instance);
   delete instance;
   instance = NULL;
-  DeviceSocketListener::ShutdownSocketManager();
 }
 
 }  // namespace athena