Allow app list tiles to show search results in the experimental app list.

ui/app_list/app_list_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_APP_LIST_MODEL_H_
 #define UI_APP_LIST_APP_LIST_MODEL_H_
 
 #include <string>
+#include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "ui/app_list/app_list_export.h"
 #include "ui/app_list/app_list_item_list.h"
 #include "ui/app_list/app_list_item_list_observer.h"
+#include "ui/app_list/search_result.h"
 #include "ui/base/models/list_model.h"
 
 namespace app_list {
 
 class AppListFolderItem;
 class AppListItem;
 class AppListItemList;
 class AppListModelObserver;
 class SearchBoxModel;
-class SearchResult;
 
 // Master model of app list that consists of three sub models: AppListItemList,
 // SearchBoxModel and SearchResults. The AppListItemList sub model owns a list
 // of AppListItems and is displayed in the grid view. SearchBoxModel is
 // the model for SearchBoxView. SearchResults owns a list of SearchResult.
 // NOTE: Currently this class observes |top_level_item_list_|. The View code may
 // move entries in the item list directly (but can not add or remove them) and
 // the model needs to notify its observers when this occurs.
 class APP_LIST_EXPORT AppListModel : public AppListItemListObserver {
  public:
@@ skipping 73 matching lines @@
   // appropriate folder.
   void DeleteItem(const std::string& id);
 
   // Call OnExtensionPreferenceChanged() for all items in the model.
   void NotifyExtensionPreferenceChanged();
 
   // Sets wither or not folder UI should be enabled. If |folders_enabled| is
   // false, removes any non-OEM folders.
   void SetFoldersEnabled(bool folders_enabled);
 
+  // Filters the given |results| by |display_type|. The returned list is
+  // truncated to |max_results|.
+  static std::vector<SearchResult*> GetSearchResultsForDisplayType(

[Matt Giuca, 2014/08/06 08:54:53]

Rename to FilterSearchResultsByDisplayType. ("Get" implies that it is fetching
them from somewhere else, whereas this just munges its own input.)

[calamity, 2014/08/12 05:03:36]

Done.

+      SearchResults* results,
+      SearchResult::DisplayType display_type,
+      size_t max_results);
+
   AppListItemList* top_level_item_list() { return top_level_item_list_.get(); }
 
   SearchBoxModel* search_box() { return search_box_.get(); }
   SearchResults* results() { return results_.get(); }
   Status status() const { return status_; }
   bool folders_enabled() const { return folders_enabled_; }
 
  private:
   // AppListItemListObserver
   virtual void OnListItemMoved(size_t from_index,
@@ skipping 34 matching lines @@
   Status status_;
   ObserverList<AppListModelObserver> observers_;
   bool folders_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(AppListModel);
 };
 
 }  // namespace app_list
 
 #endif  // UI_APP_LIST_APP_LIST_MODEL_H_