Add confidence to AutocompleteMatch.

chrome/browser/autocomplete/builtin_provider.cc

 // Copyright (c) 2011 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 "chrome/browser/autocomplete/builtin_provider.h"
 
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/browser_about_handler.h"
 #include "chrome/browser/net/url_fixer_upper.h"
@@ skipping 97 matching lines @@
       }
     }
   }
 
   for (size_t i = 0; i < matches_.size(); ++i)
     matches_[i].relevance = kRelevance + matches_.size() - (i + 1);
 }
 
 void BuiltinProvider::AddMatch(const string16& match_string,
                                const ACMatchClassifications& styles) {
-  AutocompleteMatch match(this, kRelevance, false,
+  AutocompleteMatch match(this, kRelevance, 0.0f, false,
                           AutocompleteMatch::NAVSUGGEST);
   match.fill_into_edit = match_string;
   match.destination_url = GURL(match_string);
   match.contents = match_string;
   match.contents_class = styles;
   matches_.push_back(match);
 }