Get drag and drop working on Win Ash.

ui/base/dragdrop/drag_utils_win.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/base/dragdrop/drag_utils.h"
 
 #include <objidl.h>
 #include <shlobj.h>
 #include <shobjidl.h>
 
@@ skipping 50 matching lines @@
   DCHECK(data_object && !size.IsEmpty());
   // InitializeFromBitmap() doesn't expect an alpha channel and is confused
   // by premultiplied colors, so unpremultiply the bitmap.
   // SetDragImageOnDataObject(HBITMAP) takes ownership of the bitmap.
   HBITMAP bitmap = CreateHBITMAPFromSkBitmap(
       SkBitmapOperations::UnPreMultiply(*image_skia.bitmap()));
 
   // Attach 'bitmap' to the data_object.
   SetDragImageOnDataObject(bitmap, size, cursor_offset,
       ui::OSExchangeDataProviderWin::GetIDataObject(*data_object));
+
+#if defined(USE_AURA)
+  // TODO: the above code is used in non-Ash, while below is used in Ash. If we
+  // could figure this context out then we wouldn't do unnecessary work. However
+  // as it stands getting this information in ui/base would be a layering
+  // violation.
+  data_object->provider().SetDragImage(image_skia, cursor_offset);
+#endif
 }
 
 }  // namespace drag_utils