Optimization: not sending answer server requests for voice queries.

ui/app_list/search_box_model.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 UI_APP_LIST_SEARCH_BOX_MODEL_H_
 #define UI_APP_LIST_SEARCH_BOX_MODEL_H_
 
 #include "base/macros.h"
 #include "base/observer_list.h"
 #include "base/strings/string16.h"
@@ skipping 50 matching lines @@
   // Sets/gets the text for screen readers on the search box.
   void SetAccessibleName(const base::string16& accessible_name);
   const base::string16& accessible_name() const { return accessible_name_; }
 
   // Sets/gets the selection model for the search box's Textfield.
   void SetSelectionModel(const gfx::SelectionModel& sel);
   const gfx::SelectionModel& selection_model() const {
     return selection_model_;
   }
 
-  // Sets/gets the text for the search box's Textfield.
-  void SetText(const base::string16& text);
+  // Sets/gets the text for the search box's Textfield and the voice search
+  // flag.
+  void Update(const base::string16& text, bool is_voice_query);
   const base::string16& text() const { return text_; }
+  bool is_voice_query() const { return is_voice_query_; }
 
   void AddObserver(SearchBoxModelObserver* observer);
   void RemoveObserver(SearchBoxModelObserver* observer);
 
  private:
   std::unique_ptr<SpeechButtonProperty> speech_button_;
   base::string16 hint_text_;
   base::string16 accessible_name_;
   gfx::SelectionModel selection_model_;
   base::string16 text_;
+  bool is_voice_query_ = false;
 
   base::ObserverList<SearchBoxModelObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(SearchBoxModel);
 };
 
 }  // namespace app_list
 
 #endif  // UI_APP_LIST_SEARCH_BOX_MODEL_H_