app_list: Search result launch history and boost.

chrome/browser/ui/app_list/search/mixer.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 CHROME_BROWSER_UI_APP_LIST_SEARCH_MIXER_H_
 #define CHROME_BROWSER_UI_APP_LIST_SEARCH_MIXER_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_vector.h"
+#include "chrome/browser/ui/app_list/search/history_types.h"
 #include "ui/app_list/app_list_model.h"
 
 namespace app_list {
 
 class SearchProvider;
 
 // Mixer collects results from providers, sorts them and publishes them to the
 // SearchResults UI model. The targeted results have 6 slots to hold the
 // result. These slots could be viewed as having three groups: main group
 // (local apps and contacts), omnibox group and web store group. The
@@ skipping 12 matching lines @@
   explicit Mixer(AppListModel::SearchResults* ui_results);
   ~Mixer();
 
   // Creates mixer groups.
   void Init();
 
   // Associates a provider with a mixer group.
   void AddProviderToGroup(GroupId group, SearchProvider* provider);
 
   // Collects the results, sorts and publishes them.
-  void MixAndPublish();
+  void MixAndPublish(const KnownResults& known_results);
 
  private:
   class Group;
   typedef ScopedVector<Group> Groups;
 
-  void FetchResults();
+  void FetchResults(const KnownResults& known_results);
 
   AppListModel::SearchResults* ui_results_;  // Not owned.
   Groups groups_;
 
   DISALLOW_COPY_AND_ASSIGN(Mixer);
 };
 
 }  // namespace app_list
 
 #endif  // CHROME_BROWSER_UI_APP_LIST_SEARCH_MIXER_H_