Introduce ui/wm/ directory.

ui/shell/shell.gyp

Index: ui/shell/shell.gyp
diff --git a/ui/shell/shell.gyp b/ui/shell/shell.gyp
deleted file mode 100644
index 71ce1022075f560f8ab8c633ff272f4facf5f221..0000000000000000000000000000000000000000
--- a/ui/shell/shell.gyp
+++ /dev/null
@@ -1,24 +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.
-
-{
-  'variables': {
-    'chromium_code': 1,
-  },
-  'targets': [
-    {
-      'target_name': 'shell',
-      'type': 'static_library',
-      'dependencies': [
-        '../../skia/skia.gyp:skia',
-        '../aura/aura.gyp:aura',
-        '../views/views.gyp:views',
-      ],
-      'sources': [
-        'minimal_shell.cc',
-        'minimal_shell.h',
-      ],
-    },
-  ],
-}