GDK W32: Fix positioning of reparented window

MoveWindow should not be used over the pre-existing move/resize
functions, which already correctly position a window with respect
to its parent, while also taking into account the size of window
decorations.

https://bugzilla.gnome.org/show_bug.cgi?id=765100

gdk/win32/gdkwindow-win32.c

@@ -1706,9 +1706,6 @@ gdk_win32_window_reparent (GdkWindow *window,
   API_CALL (SetParent, (GDK_WINDOW_HWND (window),
 			GDK_WINDOW_HWND (new_parent)));
 
-  API_CALL (MoveWindow, (GDK_WINDOW_HWND (window),
-			 x, y, window->width, window->height, TRUE));
-
   /* From here on, we treat parents of type GDK_WINDOW_FOREIGN like
    * the root window
    */
@@ -1741,6 +1738,9 @@ gdk_win32_window_reparent (GdkWindow *window,
 	}
     }
 
+  /* Move window into desired position while keeping the same client area */
+  gdk_win32_window_move_resize (window, TRUE, x, y, window->width, window->height);
+
   return FALSE;
 }