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

content/public/browser/web_ui.h

Index: content/public/browser/web_ui.h
diff --git a/content/public/browser/web_ui.h b/content/public/browser/web_ui.h
index 3e72a64d1b6b629cd72a12fa21570b38d6e91a4a..a0610ee9f2f3e50184da733ef2d97bc26cbd1e7f 100644
--- a/content/public/browser/web_ui.h
+++ b/content/public/browser/web_ui.h
@@ -72,6 +72,10 @@ class CONTENT_EXPORT WebUI {
   virtual bool ShouldHideURL() const = 0;
   virtual void HideURL() = 0;
 
+  // Returns true if the pages URL host should not be emphasized.
+  virtual bool ShouldNotEmphasizeHost() const = 0;
+  virtual void DontEmphasizeHost() = 0;
+
   // Gets a custom tab title provided by the Web UI. If there is no title
   // override, the string will be empty which should trigger the default title
   // behavior for the tab.