Fixed experimental app list pagination indicator.

ui/app_list/views/contents_switcher_view.h

 // Copyright 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_CONTENTS_SWITCHER_VIEW_H_
 #define UI_APP_LIST_VIEWS_CONTENTS_SWITCHER_VIEW_H_
 
+#include <map>
+
 #include "base/basictypes.h"
 #include "ui/app_list/pagination_model_observer.h"
 #include "ui/views/controls/button/button.h"
 #include "ui/views/view.h"
 
 namespace app_list {
 
 class ContentsView;
 
 // A view that contains buttons to switch the displayed view in the given
@@ skipping 18 matching lines @@
                              const ui::Event& event) OVERRIDE;
 
   // Overridden from PaginationModelObserver:
   virtual void TotalPagesChanged() OVERRIDE;
   virtual void SelectedPageChanged(int old_selected, int new_selected) OVERRIDE;
   virtual void TransitionStarted() OVERRIDE;
   virtual void TransitionChanged() OVERRIDE;
 
   ContentsView* contents_view_;  // Owned by views hierarchy.
 
-  // Stores Views owned by views hierarchy.
-  std::vector<views::View*> page_active_indicators_;
+  // Maps page indices to Views owned by views hierarchy.
+  std::map<int, views::View*> page_active_indicators_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentsSwitcherView);
 };
 
 }  // namespace app_list
 
 #endif  // UI_APP_LIST_VIEWS_CONTENTS_SWITCHER_VIEW_H_