Remove some platform specific stuff from views.

ui/app_list/views/folder_header_view_delegate.h

Index: ui/app_list/views/folder_header_view_delegate.h
diff --git a/ui/app_list/views/folder_header_view_delegate.h b/ui/app_list/views/folder_header_view_delegate.h
deleted file mode 100644
index 843c071d17bee5a3dae2ef7a3ae3a333f3eb813f..0000000000000000000000000000000000000000
--- a/ui/app_list/views/folder_header_view_delegate.h
+++ /dev/null
@@ -1,39 +0,0 @@
-// 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 UI_APP_LIST_VIEWS_FOLDER_HEADER_VIEW_DELEGATE_H_
-#define UI_APP_LIST_VIEWS_FOLDER_HEADER_VIEW_DELEGATE_H_
-
-#include <string>
-
-namespace ui {
-class Event;
-}
-
-namespace app_list {
-
-class AppListFolderItem;
-
-class FolderHeaderViewDelegate {
- public:
-  // Invoked when the back button on the folder header view is clicked.
-  // |item| is the folder item which FolderHeaderview represents.
-  // |event_flags| contains the flags of the keyboard/mouse event that triggers
-  // the request.
-  virtual void NavigateBack(AppListFolderItem* item,
-                            const ui::Event& event_flags) = 0;
-
-  // Gives back the focus to the search box.
-  virtual void GiveBackFocusToSearchBox() = 0;
-
-  // Tells the model to set the name of |item|.
-  virtual void SetItemName(AppListFolderItem* item,
-                           const std::string& name) = 0;
-
-  virtual ~FolderHeaderViewDelegate() {}
-};
-
-}  // namespace app_list
-
-#endif  // UI_APP_LIST_VIEWS_FOLDER_HEADER_VIEW_DELEGATE_H_