Optimization: not sending answer server requests for voice queries.

ui/app_list/search_controller.h

 // Copyright 2013 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 UI_APP_LIST_SEARCH_CONTROLLER_H_
 #define UI_APP_LIST_SEARCH_CONTROLLER_H_
 
 #include <stddef.h>
 
 #include <memory>
@@ skipping 15 matching lines @@
 // Controller that collects query from given SearchBoxModel, dispatches it
 // to all search providers, then invokes the mixer to mix and to publish the
 // results to the given SearchResults UI model.
 class APP_LIST_EXPORT SearchController {
  public:
   SearchController(SearchBoxModel* search_box,
                    AppListModel::SearchResults* results,
                    History* history);
   virtual ~SearchController();
 
-  void Start(bool is_voice_query);
+  void Start();
   void Stop();
 
   void OpenResult(SearchResult* result, int event_flags);
   void InvokeResultAction(SearchResult* result,
                           int action_index,
                           int event_flags);
 
   // Adds a new mixer group. See Mixer::AddGroup.
   size_t AddGroup(size_t max_results, double multiplier);
 
@@ skipping 19 matching lines @@
   bool is_voice_query_ = false;
 
   base::OneShotTimer stop_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(SearchController);
 };
 
 }  // namespace app_list
 
 #endif  // UI_APP_LIST_SEARCH_CONTROLLER_H_