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 90 matching lines @@
 
   // The actual image size.
   gfx::Size image_size_;
 
   // The underlying image.
   gfx::ImageSkia image_;
 
   // The ID of the vector icon that should be drawn, or gfx::VECTOR_ICON_NONE.
   // This is drawn in addition to |image_|, but in most cases you probably want
   // one or the other and not both.
-  gfx::VectorIconId vector_id_;
+  int vector_id_;

[Nico, 2015/07/13 22:06:12]

you can probably keep this a gfx::VectorIconId. Since the compiler knows that
it's an int (due to it being an enum class) it can allocate storage for it even
without having the definition of VectorIconId. (At least it works with clang
locally)

[Evan Stade, 2015/07/13 23:20:43]

hmm, when I tried this before I got

 error: field has incomplete type 'gfx::VectorIconId'

but I can't seem to figure out which compiler said that and maybe I had some
other error that caused it.

 
   // The color to use when drawing the vector icon.
   SkColor vector_color_;
 
   // Horizontal alignment.
   Alignment horiz_alignment_;
 
   // Vertical alignment.
   Alignment vert_alignment_;
 
@@ skipping 11 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_