Give request-to-act badges a grey background, and increase spacing to make it fit.

chrome/browser/ui/omnibox/location_bar_util.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 CHROME_BROWSER_UI_OMNIBOX_LOCATION_BAR_UTIL_H_
 #define CHROME_BROWSER_UI_OMNIBOX_LOCATION_BAR_UTIL_H_
 
 #include "base/string16.h"
+#include "third_party/skia/include/core/SkColor.h"
+
+class ExtensionAction;
+
+namespace gfx {
+class Canvas;
+class Rect;
+}
 
 namespace location_bar_util {
 
 // Build a short string to use in keyword-search when the field isn't very big.
 string16 CalculateMinString(const string16& description);
 
+// Paint the background and border for |action| on |tab_id|.  |bounds| should
+// include the top and bottom of the location bar, and the middle column
+// exactly between two ExtensionActions, so both ExtensionActions can draw on
+// it.  This background is only drawn for script badges in the WANTS_ATTENTION
+// state, and (when text is black and the background is white) consists of a
+// dark grey, 1px border and a lighter grey background with a slight vertical
+// gradient.
+void PaintExtensionActionBackground(const ExtensionAction& action,
+                                    int tab_id,
+                                    gfx::Canvas* canvas,
+                                    const gfx::Rect& bounds,
+                                    SkColor text_color,
+                                    SkColor background_color);
+
 }  // namespace location_bar_util
 
 #endif  // CHROME_BROWSER_UI_OMNIBOX_LOCATION_BAR_UTIL_H_