Use undoview from deps/third_party/

third_party/undoview/undoview.gyp

Index: third_party/undoview/undoview.gyp
===================================================================
--- third_party/undoview/undoview.gyp	(revision 119883)
+++ third_party/undoview/undoview.gyp	(working copy)
@@ -1,22 +0,0 @@
-# Copyright (c) 2010 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.
-
-{
-  'targets': [
-    {
-      'target_name': 'undoview',
-      'type': 'static_library',
-      'sources': [
-        'undo_manager.h',
-        'undo_manager.c',
-        'undo_view.h',
-        'undo_view.c',
-      ],
-
-      'dependencies' : [
-        '../../build/linux/system.gyp:gtk',
-      ],
-    },
-  ],
-}