Omnibox UI Experiments: Implement scheme-trimming for suggested URLs.

components/omnibox/browser/autocomplete_match.h

Index: components/omnibox/browser/autocomplete_match.h
diff --git a/components/omnibox/browser/autocomplete_match.h b/components/omnibox/browser/autocomplete_match.h
index 9c0a1320d64dd2341f5f71d69f75183035e4d520..2e409a79deebdd3b290db163e47184491acdd0f5 100644
--- a/components/omnibox/browser/autocomplete_match.h
+++ b/components/omnibox/browser/autocomplete_match.h
@@ -12,6 +12,7 @@
 #include <string>
 #include <vector>
 
+#include "base/strings/utf_offset_string_conversions.h"

[Justin Donnelly, 2017/06/20 17:31:01]

Can you forward declare base::OffsetAdjuster::Adjustments instead of including
this?

[tommycli, 2017/06/20 22:51:21]

Unfortunately it's not possible to forward declare a nested type. Also
Adjustments is a typedef so it also can't be forward declared.

 #include "components/omnibox/browser/autocomplete_input.h"
 #include "components/omnibox/browser/autocomplete_match_type.h"
 #include "components/search_engines/template_url.h"
@@ -207,6 +208,20 @@ struct AutocompleteMatch {
                                  TemplateURLService* template_url_service,
                                  const base::string16& keyword);
 
+  // These are convenience functions for formatting a URL into an abridged form
+  // for display within the Omnibox suggestions dropdown.
+  //
+  // The results are explicitly for non-security surfaces. Do not use the
+  // results for anything other than the Omnibox dropdown.
+  static base::string16 FormatUrlForSuggestionDisplay(
+      const GURL& url,
+      bool trim_scheme,
+      size_t* offset_for_adjustment);
+  static base::string16 FormatUrlForSuggestionDisplayWithAdjustments(
+      const GURL& url,
+      bool trim_scheme,
+      base::OffsetAdjuster::Adjustments* adjustments);
+
   // Computes the stripped destination URL (via GURLToStrippedGURL()) and
   // stores the result in |stripped_destination_url|.  |input| is used for the
   // same purpose as in GURLToStrippedGURL().