Rename app_modal_dialogs dir to app_modal

extensions/components/javascript_dialog_extensions_client.gypi

 # 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.
 {
   'targets': [
     {
       'target_name': 'javascript_dialog_extensions_client',
       'type': 'static_library',
       'dependencies': [
-        '../../components/components.gyp:app_modal_dialogs',
+        '../../components/components.gyp:app_modal',
         '../../skia/skia.gyp:skia',
         '../extensions.gyp:extensions_browser',
         '../extensions.gyp:extensions_common',
       ],
       'include_dirs': [
         '../..',
       ],
       'sources': [
         'javascript_dialog_extensions_client/javascript_dialog_extension_client_impl.cc',
         'javascript_dialog_extensions_client/javascript_dialog_extension_client_impl.h',
       ],
     },
   ],
 }