Remove some platform specific stuff from views.

ui/file_manager/file_manager/common/js/externs.js

Index: ui/file_manager/file_manager/common/js/externs.js
diff --git a/ui/file_manager/file_manager/common/js/externs.js b/ui/file_manager/file_manager/common/js/externs.js
deleted file mode 100644
index d5f375ee4e382ba80edcbf0a4c9dd6753f8aa25b..0000000000000000000000000000000000000000
--- a/ui/file_manager/file_manager/common/js/externs.js
+++ /dev/null
@@ -1,45 +0,0 @@
-// 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.
-
-/**
- * @constructor
- * @extends {Window}
- */
-var BackgroundWindow = function() {};
-
-/**
- * @type {FileBrowserBackground}
- */
-BackgroundWindow.prototype.background;
-
-/**
- * @param {Window} window
- */
-BackgroundWindow.prototype.registerDialog = function(window) {};
-
-
-/**
- * @constructor
- * @extends {Event}
- */
-var FileOperationProgressEvent = function() {};
-
-/** @type {string} */
-FileOperationProgressEvent.prototype.reason;
-
-/** @type {(FileOperationManager.Error|undefined)} */
-FileOperationProgressEvent.prototype.error;
-
-
-/**
- * @constructor
- * @extends {Event}
- */
-var EntriesChangedEvent = function() {};
-
-/** @type {util.EntryChangedKind} */
-EntriesChangedEvent.prototype.kind;
-
-/** @type {Array.<!Entry>} */
-EntriesChangedEvent.prototype.entries;