Extensions: Remove PermissionMessage (permission_message.h/cc)

extensions/extensions.gypi

 # Copyright 2015 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': {
     'extensions_common_constants_sources': [
       'common/constants.cc',
       'common/constants.h',
     ],
@@ skipping 163 matching lines @@
       'common/permissions/extensions_api_permissions.cc',
       'common/permissions/extensions_api_permissions.h',
       'common/permissions/manifest_permission.cc',
       'common/permissions/manifest_permission.h',
       'common/permissions/manifest_permission_set.cc',
       'common/permissions/manifest_permission_set.h',
       'common/permissions/media_galleries_permission.cc',
       'common/permissions/media_galleries_permission.h',
       'common/permissions/media_galleries_permission_data.cc',
       'common/permissions/media_galleries_permission_data.h',
-      'common/permissions/permission_message.cc',
-      'common/permissions/permission_message.h',
       'common/permissions/permission_message_provider.cc',
       'common/permissions/permission_message_provider.h',
       'common/permissions/permission_message_util.cc',
       'common/permissions/permission_message_util.h',
       'common/permissions/permission_set.cc',
       'common/permissions/permission_set.h',
       'common/permissions/permissions_data.cc',
       'common/permissions/permissions_data.h',
       'common/permissions/permissions_info.cc',
       'common/permissions/permissions_info.h',
@@ skipping 867 matching lines @@
       'test/result_catcher.h',
       'test/test_content_utility_client.cc',
       'test/test_content_utility_client.h',
       'test/test_extensions_client.cc',
       'test/test_extensions_client.h',
       'test/test_permission_message_provider.cc',
       'test/test_permission_message_provider.h',
     ],
   },
 }