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..b8659cd7bb04919e3838ed14eb2a891222374afe 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"
 #include "components/omnibox/browser/autocomplete_input.h"
 #include "components/omnibox/browser/autocomplete_match_type.h"
 #include "components/search_engines/template_url.h"
@@ -207,6 +208,24 @@ 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 FormatUrlForSuggestionDisplayWithOffsets(
+      const GURL& url,
+      bool trim_scheme,
+      std::vector<size_t>* offsets_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().