Delete ash-based code for Windows drag-and-drop graphics.

ui/views/controls/textfield/textfield.cc

Index: ui/views/controls/textfield/textfield.cc
diff --git a/ui/views/controls/textfield/textfield.cc b/ui/views/controls/textfield/textfield.cc
index 1586362197bbeeefe7910675eb0c4747e5441b76..877820490f43ca48db8cb735fd29e57a9f1ed2cf 100644
--- a/ui/views/controls/textfield/textfield.cc
+++ b/ui/views/controls/textfield/textfield.cc
@@ -17,7 +17,6 @@
 #include "ui/base/cursor/cursor.h"
 #include "ui/base/default_style.h"
 #include "ui/base/dragdrop/drag_drop_types.h"
-#include "ui/base/dragdrop/drag_utils.h"
 #include "ui/base/ime/input_method.h"
 #include "ui/base/ime/text_edit_commands.h"
 #include "ui/base/material_design/material_design_controller.h"
@@ -1090,7 +1089,7 @@ void Textfield::WriteDragDataForView(View* sender,
       ui::CanvasPainter(&bitmap, label.size(), raster_scale, color).context());
   const gfx::Vector2d kOffset(-15, 0);
   gfx::ImageSkia image(gfx::ImageSkiaRep(bitmap, raster_scale));
-  drag_utils::SetDragImageOnDataObject(image, kOffset, data);
+  data->provider().SetDragImage(image, kOffset);
   if (controller_)
     controller_->OnWriteDragData(data);
 }