Increase answers cache size.

components/omnibox/search_provider.cc

 // Copyright 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/search_provider.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/base64.h"
@@ skipping 110 matching lines @@
 
 SearchProvider::SearchProvider(
     AutocompleteProviderListener* listener,
     TemplateURLService* template_url_service,
     scoped_ptr<AutocompleteProviderClient> client)
     : BaseSearchProvider(template_url_service, client.Pass(),
                          AutocompleteProvider::TYPE_SEARCH),
       listener_(listener),
       suggest_results_pending_(0),
       providers_(template_url_service),
-      answers_cache_(1) {
+      answers_cache_(10) {
 }
 
 // static
 std::string SearchProvider::GetSuggestMetadata(const AutocompleteMatch& match) {
   return match.GetAdditionalInfo(kSuggestMetadataKey);
 }
 
 void SearchProvider::ResetSession() {
   field_trial_triggered_in_session_ = false;
 }
@@ skipping 1187 matching lines @@
       match->fill_into_edit.empty())
     return;
 
   // Valid answer encountered, cache it for further queries.
   answers_cache_.UpdateRecentAnswers(match->fill_into_edit, match->answer_type);
 }
 
 void SearchProvider::DoAnswersQuery(const AutocompleteInput& input) {
   prefetch_data_ = answers_cache_.GetTopAnswerEntry(input.text());
 }