mash: Move ash/common/wm/shelf to ash/common/shelf

ash/system/status_area_widget.h

Index: ash/system/status_area_widget.h
diff --git a/ash/system/status_area_widget.h b/ash/system/status_area_widget.h
index b6887447933e21779127fa42d8679f50b5aa89b6..efe536ff274419acb8b800b8d9210c7758f2d4e5 100644
--- a/ash/system/status_area_widget.h
+++ b/ash/system/status_area_widget.h
@@ -6,7 +6,7 @@
 #define ASH_SYSTEM_STATUS_AREA_WIDGET_H_
 
 #include "ash/ash_export.h"
-#include "ash/shelf/shelf_types.h"
+#include "ash/common/shelf/shelf_types.h"
 #include "ash/system/user/login_status.h"
 #include "base/macros.h"
 #include "ui/views/widget/widget.h"
@@ -37,7 +37,7 @@ class ASH_EXPORT StatusAreaWidget : public views::Widget {
   void Shutdown();
 
   // Update the alignment of the widget and tray views.
-  void SetShelfAlignment(wm::ShelfAlignment alignment);
+  void SetShelfAlignment(ShelfAlignment alignment);
 
   // Set the visibility of system notifications.
   void SetHideSystemNotifications(bool hide);