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

chrome/common/extensions/extension_action.h

Index: chrome/common/extensions/extension_action.h
diff --git a/chrome/common/extensions/extension_action.h b/chrome/common/extensions/extension_action.h
index d111678b525a41e04d0c2eed4cd7a02cae1a11fa..effe43f3e51e5493052c1506a33a39dc273a57f8 100644
--- a/chrome/common/extensions/extension_action.h
+++ b/chrome/common/extensions/extension_action.h
@@ -236,6 +236,11 @@ class ExtensionAction {
     return GetValue(&appearance_, tab_id) != INVISIBLE;
   }
 
+  // True if the tab's action wants the user's attention.
+  bool WantsAttention(int tab_id) const {
+    return GetValue(&appearance_, tab_id) == WANTS_ATTENTION;
+  }
+
   // Remove all tab-specific state.
   void ClearAllValuesForTab(int tab_id);