Shows chrome-extension urls and greys out the whole url.

chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.mm

Index: chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.mm
diff --git a/chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.mm b/chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.mm
index 3e1140fd3c8477c429bf8a1dc67444f913b6a403..b5daee62292736066b05b841fc020c7969f820c2 100644
--- a/chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.mm
+++ b/chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.mm
@@ -450,13 +450,15 @@ void OmniboxViewMac::ApplyTextAttributes(const string16& display_text,
   url_parse::Component scheme, host;
   AutocompleteInput::ParseForEmphasizeComponents(
       display_text, &scheme, &host);
-  const bool emphasize = model()->CurrentTextIsURL() && (host.len > 0);
-  if (emphasize) {
+  if (model()->currentTextIsURL() &&
+      (host.is_nonempty() || toolbar_model()->ShouldGreyOutURL())) {
     [as addAttribute:NSForegroundColorAttributeName value:BaseTextColor()
                range:as_entire_string];
 
-    [as addAttribute:NSForegroundColorAttributeName value:HostTextColor()
+    if (host.is_nonempty() && !toolbar_model()->ShouldGreyOutURL()) {

[Peter Kasting, 2013/04/04 21:07:05]

Nit: No need to add the first clause, it will always be true if the second
clause holds.

[Patrick Riordan, 2013/04/10 02:00:24]

Done.

+      [as addAttribute:NSForegroundColorAttributeName value:HostTextColor()
                range:ComponentToNSRange(host)];
+    }
   }
 
   // TODO(shess): GTK has this as a member var, figure out why.