Reland - Omnibox - Mark As Duplicates URLs that only differ by a trailing slash

components/omnibox/history_quick_provider.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/omnibox/history_quick_provider.h"
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/debug/crash_logging.h"
@@ skipping 236 matching lines @@
         kBug464926CrashKey,
         info.url().spec().substr(0, 30) + " " +
             base::UTF16ToUTF8(autocomplete_input_.text()).substr(0, 20) + " " +
             base::SizeTToString(history_match.url_matches.size()) + " " +
             base::SizeTToString(offsets.size()));
     CHECK(!new_matches.empty());
     size_t inline_autocomplete_offset = new_matches[0].offset +
         new_matches[0].length;
     // |inline_autocomplete_offset| may be beyond the end of the
     // |fill_into_edit| if the user has typed an URL with a scheme and the
-    // last character typed is a slash.  That slash is removed by the
+    // last character typed is a slash.  That slash may be removed by the
     // FormatURLWithOffsets call above.
     if (inline_autocomplete_offset < match.fill_into_edit.length()) {
       match.inline_autocompletion =
           match.fill_into_edit.substr(inline_autocomplete_offset);
+      match.StripLoneSlashOnInlineAutocompletion();
     }
     match.allowed_to_be_default_match = match.inline_autocompletion.empty() ||
         !PreventInlineAutocomplete(autocomplete_input_);
   }
   match.EnsureUWYTIsAllowedToBeDefault(autocomplete_input_.canonicalized_url(),
                                        client()->GetTemplateURLService());
 
   // Format the description autocomplete presentation.
   match.description = info.title();
   match.description_class = SpansFromTermMatch(
       history_match.title_matches, match.description.length(), false);
 
   match.RecordAdditionalInfo("typed count", info.typed_count());
   match.RecordAdditionalInfo("visit count", info.visit_count());
   match.RecordAdditionalInfo("last visit", info.last_visit());
 
   return match;
 }