Insert panel icons on the left of other panel icons.

ash/launcher/launcher_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 ASH_LAUNCHER_LAUNCHER_MODEL_H_
 #define ASH_LAUNCHER_LAUNCHER_MODEL_H_
 
 #include "ash/ash_export.h"
 #include "ash/launcher/launcher_types.h"
 #include "base/basictypes.h"
 #include "base/observer_list.h"
 
 namespace ash {
 
 class LauncherModelObserver;
 
 // Model used by LauncherView.
 class ASH_EXPORT LauncherModel {
  public:
   enum Status {
     STATUS_NORMAL,
     // A status that indicates apps are syncing/loading.
     STATUS_LOADING,
   };
 
+  // The index to use when adding an item to automatically position it by
+  // item type.
+  static const int kAutomaticIndex;
+
   LauncherModel();
   ~LauncherModel();
 
   // Adds a new item to the model. Returns the resulting index.
   int Add(const LauncherItem& item);
 
   // Adds the item. |index| is the requested insertion index, which may be
   // modified to meet type-based ordering. Returns the actual insertion index.
   int AddAt(int index, const LauncherItem& item);
 
@@ skipping 46 matching lines @@
   LauncherItems items_;
   Status status_;
   ObserverList<LauncherModelObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(LauncherModel);
 };
 
 }  // namespace ash
 
 #endif  // ASH_LAUNCHER_LAUNCHER_MODEL_H_