Move wm/public into wm target

ui/wm/public/drag_drop_delegate.h

Index: ui/wm/public/drag_drop_delegate.h
diff --git a/ui/wm/public/drag_drop_delegate.h b/ui/wm/public/drag_drop_delegate.h
index 50f6c267686951a66d9b99c0f7d9820f1dd4808e..bf52b93c9e3bb2af91b46f9d0f50853a20389da7 100644
--- a/ui/wm/public/drag_drop_delegate.h
+++ b/ui/wm/public/drag_drop_delegate.h
@@ -5,7 +5,7 @@
 #ifndef UI_WM_PUBLIC_DRAG_DROP_DELEGATE_H_
 #define UI_WM_PUBLIC_DRAG_DROP_DELEGATE_H_
 
-#include "ui/aura/aura_export.h"
+#include "ui/wm/wm_export.h"
 
 namespace ui {
 class DropTargetEvent;
@@ -16,7 +16,7 @@ class Window;
 namespace client {
 
 // Delegate interface for drag and drop actions on aura::Window.
-class AURA_EXPORT DragDropDelegate {
+class WM_EXPORT DragDropDelegate {
  public:
   // OnDragEntered is invoked when the mouse enters this window during a drag &
   // drop session. This is immediately followed by an invocation of
@@ -41,9 +41,8 @@ class AURA_EXPORT DragDropDelegate {
   virtual ~DragDropDelegate() {}
 };
 
-AURA_EXPORT void SetDragDropDelegate(Window* window,
-                                     DragDropDelegate* delegate);
-AURA_EXPORT DragDropDelegate* GetDragDropDelegate(Window* window);
+WM_EXPORT void SetDragDropDelegate(Window* window, DragDropDelegate* delegate);
+WM_EXPORT DragDropDelegate* GetDragDropDelegate(Window* window);
 
 }  // namespace client
 }  // namespace aura