Remove some platform specific stuff from views.

ui/app_list/search_result_observer.h

Index: ui/app_list/search_result_observer.h
diff --git a/ui/app_list/search_result_observer.h b/ui/app_list/search_result_observer.h
deleted file mode 100644
index 09249aecec1da89e16b1a66e31dc9aa657cfd6f3..0000000000000000000000000000000000000000
--- a/ui/app_list/search_result_observer.h
+++ /dev/null
@@ -1,41 +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_SEARCH_RESULT_OBSERVER_H_
-#define UI_APP_LIST_SEARCH_RESULT_OBSERVER_H_
-
-#include "ui/app_list/app_list_export.h"
-
-namespace app_list {
-
-class APP_LIST_EXPORT SearchResultObserver {
- public:
-  // Invoked when the SearchResult's icon has changed.
-  virtual void OnIconChanged() {}
-
-  // Invoked when the SearchResult's actions have changed.
-  virtual void OnActionsChanged() {}
-
-  // Invoked when the SearchResult's is_installing flag has changed.
-  virtual void OnIsInstallingChanged() {}
-
-  // Invoked when the download percentage has changed.
-  virtual void OnPercentDownloadedChanged() {}
-
-  // Invoked when the item represented by the SearchResult is installed.
-  virtual void OnItemInstalled() {}
-
-  // Invoked when the item represented by the SearchResult is uninstalled.
-  virtual void OnItemUninstalled() {}
-
-  // Invoked just before the SearchResult is destroyed.
-  virtual void OnResultDestroying() {}
-
- protected:
-  virtual ~SearchResultObserver() {}
-};
-
-}  // namespace app_list
-
-#endif  // UI_APP_LIST_SEARCH_RESULT_OBSERVER_H_