Remove some platform specific stuff from views.

ui/app_list/pagination_model_observer.h

Index: ui/app_list/pagination_model_observer.h
diff --git a/ui/app_list/pagination_model_observer.h b/ui/app_list/pagination_model_observer.h
deleted file mode 100644
index ee594eca8938d29d06fa839e7094926dfe7c8787..0000000000000000000000000000000000000000
--- a/ui/app_list/pagination_model_observer.h
+++ /dev/null
@@ -1,32 +0,0 @@
-// 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_PAGINATION_MODEL_OBSERVER_H_
-#define UI_APP_LIST_PAGINATION_MODEL_OBSERVER_H_
-
-#include "ui/app_list/app_list_export.h"
-
-namespace app_list {
-
-class APP_LIST_EXPORT PaginationModelObserver {
- public:
-  // Invoked when the total number of page is changed.
-  virtual void TotalPagesChanged() = 0;
-
-  // Invoked when the selected page index is changed.
-  virtual void SelectedPageChanged(int old_selected, int new_selected) = 0;
-
-  // Invoked when a transition starts.
-  virtual void TransitionStarted() = 0;
-
-  // Invoked when the transition data is changed.
-  virtual void TransitionChanged() = 0;
-
- protected:
-  virtual ~PaginationModelObserver() {}
-};
-
-}  // namespace app_list
-
-#endif  // UI_APP_LIST_PAGINATION_MODEL_OBSERVER_H_