Sort experimental app list search result groups.

ui/app_list/views/search_result_container_view.h

 // Copyright (c) 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.
 
 #ifndef UI_APP_LIST_VIEWS_SEARCH_RESULT_CONTAINER_VIEW_H_
 #define UI_APP_LIST_VIEWS_SEARCH_RESULT_CONTAINER_VIEW_H_
 
 #include "base/memory/weak_ptr.h"
 #include "ui/app_list/app_list_model.h"
 #include "ui/views/view.h"
@@ skipping 22 matching lines @@
   void ClearSelectedIndex();
 
   // The currently selected index. Returns -1 on no selection.
   int selected_index() const { return selected_index_; }
 
   // Returns whether |index| is a valid index for selection.
   bool IsValidSelectionIndex(int index) const;
 
   int num_results() const { return num_results_; }
 
+  void set_container_score(double score) { container_score_ = score; }
+  double container_score() const { return container_score_; }
+
   // Schedules an Update call using |update_factory_|. Do nothing if there is a
   // pending call.
   void ScheduleUpdate();
 
   // Overridden from ui::ListModelObserver:
   void ListItemsAdded(size_t start, size_t count) override;
   void ListItemsRemoved(size_t start, size_t count) override;
   void ListItemMoved(size_t index, size_t target_index) override;
   void ListItemsChanged(size_t start, size_t count) override;
 
   // Updates the container for being selected. |from_bottom| is true if the view
   // was entered into from a selected view below it; false if entered into from
   // above.
   virtual void OnContainerSelected(bool from_bottom) = 0;
 
  private:
   // Updates UI with model. Returns the number of visible results.
   virtual int Update() = 0;
 
   // Updates UI for a change in the selected index.
   virtual void UpdateSelectedIndex(int old_selected, int new_selected) = 0;
 
   // Batching method that actually performs the update and updates layout.
   void DoUpdate();
 
   int selected_index_;
   int num_results_;
 
+  double container_score_;
+
   AppListModel::SearchResults* results_;  // Owned by AppListModel.
 
   // The factory that consolidates multiple Update calls into one.
   base::WeakPtrFactory<SearchResultContainerView> update_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SearchResultContainerView);
 };
 
 }  // namespace app_list
 
 #endif  // UI_APP_LIST_VIEWS_SEARCH_RESULT_CONTAINER_VIEW_H_