A working implementation of AQS (Assisted Query Stats).

chrome/browser/autocomplete/autocomplete.h

 // 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.
 
 #ifndef CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_H_
 #define CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 729 matching lines @@
 
   // Updates |result| to populate each match's |associated_keyword| if that
   // match can show a keyword hint.  |result| should be sorted by
   // relevance before this is called.
   void UpdateAssociatedKeywords(AutocompleteResult* result);
 
   // For each group of contiguous matches from the same TemplateURL, show the
   // provider name as a description on the first match in the group.
   void UpdateKeywordDescriptions(AutocompleteResult* result);
 
+  // For each AutocompleteMatch returned by SearchProvider, updates the
+  // destination_url iff the provider's TemplateURL supports assisted query
+  // stats.
+  void UpdateAssistedQueryStats(AutocompleteResult* result);
+
   // Calls AutocompleteControllerDelegate::OnResultChanged() and if done sends
   // AUTOCOMPLETE_CONTROLLER_RESULT_READY.
   void NotifyChanged(bool notify_default_match);
 
   // Updates |done_| to be accurate with respect to current providers' statuses.
   void CheckIfDone();
 
   // Starts the expire timer.
   void StartExpireTimer();
 
@@ skipping 73 matching lines @@
   size_t inline_autocompleted_length;
   // Result set.
   const AutocompleteResult& result;
   // Diagnostic information from providers.  See
   // AutocompleteController::AddProvidersInfo() and
   // AutocompleteProvider::AddProviderInfo() above.
   ProvidersInfo providers_info;
 };
 
 #endif  // CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_H_