Omnibox - Make Omnibox Extensions Ignore Stop() Calls Due to User Idleness

chrome/browser/autocomplete/zero_suggest_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/zero_suggest_provider.h"
 
 #include "base/callback.h"
 #include "base/i18n/case_conversion.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/metrics/histogram.h"
@@ skipping 81 matching lines @@
 }
 
 void ZeroSuggestProvider::Start(const AutocompleteInput& input,
                                 bool minimal_changes,
                                 bool called_due_to_focus) {
   matches_.clear();
   if (!called_due_to_focus ||
       input.type() == metrics::OmniboxInputType::INVALID)
     return;
 
-  Stop(true);
+  Stop(true, false);
   field_trial_triggered_ = false;
   field_trial_triggered_in_session_ = false;
   results_from_cache_ = false;
   permanent_text_ = input.text();
   current_query_ = input.current_url().spec();
   current_page_classification_ = input.current_page_classification();
   current_url_match_ = MatchForCurrentURL();
 
   const TemplateURL* default_provider =
      template_url_service_->GetDefaultSearchProvider();
@@ skipping 26 matching lines @@
   }
 
   done_ = false;
   // TODO(jered): Consider adding locally-sourced zero-suggestions here too.
   // These may be useful on the NTP or more relevant to the user than server
   // suggestions, if based on local browsing history.
   MaybeUseCachedSuggestions();
   Run(suggest_url);
 }
 
-void ZeroSuggestProvider::Stop(bool clear_cached_results) {
+void ZeroSuggestProvider::Stop(bool clear_cached_results,
+                               bool due_to_user_inactivity) {
   if (fetcher_)
     LogOmniboxZeroSuggestRequest(ZERO_SUGGEST_REQUEST_INVALIDATED);
   fetcher_.reset();
   waiting_for_most_visited_urls_request_ = false;
   done_ = true;
 
   if (clear_cached_results) {
     // We do not call Clear() on |results_| to retain |verbatim_relevance|
     // value in the |results_| object. |verbatim_relevance| is used at the
     // beginning of the next OnOmniboxFocused() call to determine the current
@@ skipping 322 matching lines @@
   if (!json_data.empty()) {
     scoped_ptr<base::Value> data(
         SearchSuggestionParser::DeserializeJsonData(json_data));
     if (data && ParseSuggestResults(
             *data, kDefaultZeroSuggestRelevance, false, &results_)) {
       ConvertResultsToAutocompleteMatches();
       results_from_cache_ = !matches_.empty();
     }
   }
 }