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

ash/sysui/shelf_delegate_mus.cc

Index: ash/sysui/shelf_delegate_mus.cc
diff --git a/ash/sysui/shelf_delegate_mus.cc b/ash/sysui/shelf_delegate_mus.cc
index 8e6564ffe9f929e30674faa6b450a4b411b33c54..b24c0b1e712a100484783a1694cd47252009c998 100644
--- a/ash/sysui/shelf_delegate_mus.cc
+++ b/ash/sysui/shelf_delegate_mus.cc
@@ -6,13 +6,13 @@
 
 #include <memory>
 
+#include "ash/common/shelf/shelf_types.h"
 #include "ash/shelf/shelf.h"
 #include "ash/shelf/shelf_item_delegate.h"
 #include "ash/shelf/shelf_item_delegate_manager.h"
 #include "ash/shelf/shelf_layout_manager.h"
 #include "ash/shelf/shelf_menu_model.h"
 #include "ash/shelf/shelf_model.h"
-#include "ash/shelf/shelf_types.h"
 #include "ash/shelf/shelf_widget.h"
 #include "ash/shell.h"
 #include "base/strings/string_util.h"
@@ -284,7 +284,7 @@ void ShelfDelegateMus::AddObserver(
 }
 
 void ShelfDelegateMus::SetAlignment(mash::shelf::mojom::Alignment alignment) {
-  wm::ShelfAlignment value = static_cast<wm::ShelfAlignment>(alignment);
+  ShelfAlignment value = static_cast<ShelfAlignment>(alignment);
   Shelf::ForPrimaryDisplay()->SetAlignment(value);
 }