Add SearchProvider's most relevant NavigationResult to |matches_|.

chrome/browser/autocomplete/search_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 "chrome/browser/autocomplete/search_provider.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/callback.h"
@@ skipping 642 matching lines @@
     matches_.erase(matches_.begin() + max_total_matches, matches_.end());
 
   UpdateStarredStateOfMatches();
   UpdateDone();
 }
 
 void SearchProvider::AddNavigationResultsToMatches(
     const NavigationResults& navigation_results,
     bool is_keyword) {
   if (!navigation_results.empty()) {
-    // TODO(kochi): http://b/1170574  We add only one results for navigational
-    // suggestions. If we can get more useful information about the score,
-    // consider adding more results.
-    matches_.push_back(
-        NavigationToMatch(navigation_results.front(), is_keyword));
+    // TODO(kochi|msw): Add more navigational results if they get more
+    //                  meaningful relevance values; see http://b/1170574.
+    NavigationResults::const_iterator result(
+        std::max_element(navigation_results.begin(),
+                         navigation_results.end(),
+                         CompareScoredResults()));
+    matches_.push_back(NavigationToMatch(*result, is_keyword));
   }
 }
 
 void SearchProvider::AddHistoryResultsToMap(const HistoryResults& results,
                                             bool is_keyword,
                                             int did_not_accept_suggestion,
                                             MatchMap* map) {
   if (results.empty())
     return;
 
@@ skipping 297 matching lines @@
 
   return match;
 }
 
 void SearchProvider::UpdateDone() {
   // We're done when there are no more suggest queries pending (this is set to 1
   // when the timer is started) and we're not waiting on instant.
   done_ = ((suggest_results_pending_ == 0) &&
            (instant_finalized_ || !InstantController::IsEnabled(profile_)));
 }