Cros system menu - Use WiFi strike-through image for "No networks" row

ui/gfx/paint_vector_icon.h

 // Copyright 2015 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_GFX_PAINT_VECTOR_ICON_H_
 #define UI_GFX_PAINT_VECTOR_ICON_H_
 
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/gfx_export.h"
 #include "ui/gfx/image/image_skia.h"
 
 namespace gfx {
 
 class Canvas;
 struct VectorIcon;
 
 GFX_EXPORT extern const VectorIcon kNoneIcon;
 
-// Draws a vector icon identified by |id| onto |canvas| at (0, 0). |dip_size|
-// is the length of a single edge of the square icon, in device independent
-// pixels. |color| is used as the fill.
+// Draws a vector icon identified by |id| onto |canvas| at (0, 0). |color| is
+// used as the fill. The size will come from the .icon file (the 1x version, if
+// multiple versions exist).
+GFX_EXPORT void PaintVectorIcon(Canvas* canvas,
+                                const VectorIcon& icon,
+                                SkColor color);
+
+// As above, with a specificed size. |dip_size| is the length of a single edge
+// of the square icon, in device independent pixels.
 GFX_EXPORT void PaintVectorIcon(Canvas* canvas,
                                 const VectorIcon& icon,
                                 int dip_size,
                                 SkColor color);
 
 // Creates an ImageSkia which will render the icon on demand. The size will come
 // from the .icon file (the 1x version, if multiple versions exist).
 GFX_EXPORT ImageSkia CreateVectorIcon(const VectorIcon& icon, SkColor color);
 
 // As above, but creates the image at the given size.
@@ skipping 10 matching lines @@
 
 #if defined(GFX_VECTOR_ICONS_UNSAFE) || defined(GFX_IMPLEMENTATION)
 // Takes a string of the format expected of .icon files and renders onto
 // a canvas. This should only be used as a debugging aid and should never be
 // used in production code.
 GFX_EXPORT ImageSkia CreateVectorIconFromSource(const std::string& source,
                                                 int dip_size,
                                                 SkColor color);
 #endif
 
+// Calculates the size that will be default for |icon|, in dip.
+GFX_EXPORT int GetDefaultSizeOfVectorIcon(const gfx::VectorIcon& icon);
+
 }  // namespace gfx
 
 #endif  // UI_GFX_PAINT_VECTOR_ICON_H_