Part 5 of search provider refactoring.

chrome/browser/autocomplete/base_search_provider.cc

 // Copyright 2014 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/base_search_provider.h"
 
 #include "base/i18n/case_conversion.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string_util.h"
@@ skipping 24 matching lines @@
                                        AutocompleteProvider::Type type)
     : AutocompleteProvider(listener, profile, type),
       field_trial_triggered_(false),
       field_trial_triggered_in_session_(false) {}
 
 // static
 bool BaseSearchProvider::ShouldPrefetch(const AutocompleteMatch& match) {
   return match.GetAdditionalInfo(kShouldPrefetchKey) == kTrue;
 }
 
+void BaseSearchProvider::Stop(bool clear_cached_results) {
+  StopSuggest();
+  done_ = true;
+
+  if (clear_cached_results)
+    ClearAllResults();
+}
+
 void BaseSearchProvider::AddProviderInfo(ProvidersInfo* provider_info) const {
   provider_info->push_back(metrics::OmniboxEventProto_ProviderInfo());
   metrics::OmniboxEventProto_ProviderInfo& new_entry = provider_info->back();
   new_entry.set_provider(AsOmniboxEventProviderType());
   new_entry.set_provider_done(done_);
   std::vector<uint32> field_trial_hashes;
   OmniboxFieldTrial::GetActiveSuggestFieldTrialHashes(&field_trial_hashes);
   for (size_t i = 0; i < field_trial_hashes.size(); ++i) {
     if (field_trial_triggered_)
       new_entry.mutable_field_trial_triggered()->Add(field_trial_hashes[i]);
@@ skipping 435 matching lines @@
        // setting the prefetch bit on a match of even higher relevance won't
        // violate this assumption.
        should_prefetch |= ShouldPrefetch(i.first->second);
        i.first->second.RecordAdditionalInfo(kShouldPrefetchKey,
                                             should_prefetch ? kTrue : kFalse);
        if (should_prefetch)
          i.first->second.RecordAdditionalInfo(kSuggestMetadataKey, metadata);
      }
    }
 }