Generated header files apparently require hard_dependency

ui/views/controls/image_view.h

 // 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.
 
 #ifndef UI_VIEWS_CONTROLS_IMAGE_VIEW_H_
 #define UI_VIEWS_CONTROLS_IMAGE_VIEW_H_
 
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/image/image_skia.h"
-#include "ui/gfx/vector_icons_public.h"
 #include "ui/views/view.h"
 
 namespace gfx {
 class Canvas;
+enum class VectorIconId;
 }
 
 namespace views {
 
 class Painter;
 
 /////////////////////////////////////////////////////////////////////////////
 //
 // ImageView class.
 //
@@ skipping 122 matching lines @@
   void* last_painted_bitmap_pixels_;
 
   scoped_ptr<views::Painter> focus_painter_;
 
   DISALLOW_COPY_AND_ASSIGN(ImageView);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_IMAGE_VIEW_H_